D-9

                                    EXHIBIT D

                                       TO

                       NOTE AND WARRANT PURCHASE AGREEMENT

                          REGISTRATION RIGHTS AGREEMENT

     THIS REGISTRATION RIGHTS AGREEMENT, is entered into as of March 7, 2005, by
and  between  MIRAVANT  MEDICAL   TECHNOLOGIES,   a  Delaware  corporation  (the
"Company"),  with  headquarters  located at 336  Bollay  Drive,  Santa  Barbara,
California  93117,  and ST. CLOUD  INVESTMENTS,  LTD., a British  Virgin Islands
company (the "Purchaser").  Capitalized terms used herein are used as defined in
Section 1 of this Agreement.

                                    RECITALS

     A. In connection with the Note and Warrant  Purchase  Agreement dated as of
March 7, 2005 between the Purchaser and the Company (the "Purchase  Agreement"),
the  Company has agreed,  upon the terms and subject to the  conditions  of said
Purchase  Agreement,  to issue and sell to the  Purchaser,  and the Purchase has
agreed to purchase from the Company, up to FIFTEEN MILLION DOLLARS ($15,000,000)
of the Company's Secured Convertible Promissory Notes and related Warrants.

     B. To induce the  Purchaser to execute and deliver the Purchase  Agreement,
the  Company  has  agreed  to  provide  certain  registration  rights  under the
Securities Act of 1933, as amended (the "Securities  Act"),  with respect to the
shares of Common Stock  issuable  upon  conversion  of the Notes,  in payment of
interest  on the Notes and upon  exercise  of the  Warrants  (collectively,  the
"Registrable Shares").

                                   AGREEMENTS

     NOW,  THEREFORE,  in consideration of the premises and the mutual covenants
contained  herein and other good and  valuable  consideration,  the  receipt and
sufficiency  of which are hereby  acknowledged,  the Company  and the  Purchaser
hereby agree as follows:

1.   Definitions. Capitalized terms used herein and not otherwise defined herein
     shall have the respective meanings set forth in the Purchase Agreement.  As
     used in this  Agreement,  the  following  terms  shall  have the  following
     meanings:

(a)  "Common Stock" means the Company's common stock, par value $0.01 per share.

(b)  "Holders" are stockholders of the Company who, by virtue of agreements with
     the  Company,   are  entitled  to  include  their   securities  in  certain
     Registration Statements filed by the Company.

(c)  "Purchaser"  means the  Purchaser  and any  transferee  or  assignee of the
     Purchaser who agree to become bound by the  provisions of this Agreement in
     accordance with Section 9 hereof.

(d)  "Registrable  Securities" means the Registrable  Shares,  together with any
     shares  of  Common  Stock or other  securities  which  may be  issued  as a
     dividend or other  distribution or in exchange for  Registrable  Shares and
     any additional shares of Common Stock,  which may be issued to Purchaser in
     accordance with Section 4.4 of the Purchase Agreement.

(e)  "Registration  Period" means the period  between the date of this Agreement
     and the earliest of (i) the date on which all of the Registrable Securities
     (including  all  shares  of  Common  Stock  into  which  the  Warrants  are
     exercisable)  have been sold in  transactions  where the  transferee is not
     subject to securities law resale  restrictions (or is subject to securities
     law resale  restrictions solely because it is an "affiliate" of the Company
     under the Securities Act and the Rules promulgated thereunder), or (ii) the
     date on which the Registrable  Securities (in the opinion of Purchaser's or
     the Company's  counsel) may be immediately  sold without  registration  and
     free of restrictions on transfer.

(f)  "Registration  Statement"  means a  registration  statement  of the Company
     filed with the  Securities  and Exchange  Commission  (the "SEC") under the
     Securities Act.

(g)  The  terms  "register,"   "registered,"  and  "registration"   refer  to  a
     registration  effected by preparing and filing a Registration  Statement in
     compliance  with the Securities Act and  applicable  rules and  regulations
     thereunder  and  pursuant  to Rule 415 under the  Securities  Act,  and the
     declaration or ordering of effectiveness of such Registration  Statement by
     the SEC.

2.   Registration.

(a)  Mandatory  Registration.  Pursuant to the terms of this Section  2(a),  the
     Company  will  prepare  and  file a  Registration  Statement  with the SEC,
     registering  all of the  Registrable  Securities for resale promptly within
     ninety  (90) days of  written  demand of the of the  holders  of at least a
     majority of the  Registrable  Securities then  outstanding  (the "Mandatory
     Registration Statement");  provided, however, that the Company shall not be
     obligated to file any Registration  Statement pursuant to this Section 2(a)
     until after the  Commitment  Expiration  Date (as  defined in the  Purchase
     Agreement).  To the extent allowable under the Securities Act and the Rules
     promulgated  thereunder,  the  Registration  Statement  shall  include  the
     Registrable  Securities of the Purchase  Agreement (i) to prevent  dilution
     resulting from stock splits,  stock dividends or similar  transactions,  or
     (ii) by reason of  changes in the  exercise  price of the  Warrants  or the
     Conversion  Price of the Notes in accordance  with the terms  thereof.  The
     Registration  Statement (and each amendment or supplement thereto) shall be
     provided to, and subject to the  reasonable  approval of, the Purchaser and
     its counsel.  The Company shall use its commercially  reasonable efforts to
     cause such  Registration  Statement to be declared  effective by the SEC as
     soon  as  practicable   after  filing  if  the  SEC  does  not  review  the
     Registration Statement.  Additionally,  if the SEC reviews the Registration
     Statement and requires the Company to make modifications  thereto,  then it
     will use its  commercially  reasonable  efforts  to have  the  Registration
     Statement  declared  effective  as soon as  practicable.  In the event that
     after the Closing Date and before the Registration  Statement is filed, the
     offices of the SEC are closed due to acts of God,  war or terror,  then the
     filing  deadline  will be extended by a number of days equal to the days of
     any such closure.  Such commercially  reasonable efforts shall include, but
     not be limited to,  promptly  responding to all comments  received from the
     staff of the SEC. Should the Company receive notification from the SEC that
     the  Registration  Statement  will  receive no action or no review from the
     SEC,  the  Company  shall  cause  such  Registration  Statement  to  become
     effective  within five (5)  business  days of such SEC  notification.  Once
     declared  effective by the SEC, the Company  shall cause such  Registration
     Statement to remain  effective  throughout  the  Registration  Period.  The
     Company  shall only be  obligated  to cause one  Registration  Statement to
     become effective pursuant to this Section 2(a).

(b)  Piggyback Registrations.

(1)  If, at any time prior to the  expiration of the  Registration  Period,  the
     Mandatory  Registration Statement is not declared effective with respect to
     all of the  Registrable  Securities and the Company decides to register any
     of its  securities  for its own account or for the account of others,  then
     the Company will promptly give the Holders  written notice thereof and will
     use its best efforts to include in such registration all or any part of the
     Registrable  Securities  requested  by the Holders to be  included  therein
     (excluding any Registrable Securities previously included in a Registration
     Statement).  This  requirement  does not apply to Company  registrations on
     Form S-4 or S-8 or their  equivalents  relating to equity  securities to be
     issued solely in connection  with an  acquisition of any entity or business
     or equity  securities  issuable in  connection  with stock  option or other
     employee  benefit plans. The Holders must give its request for registration
     under this paragraph to the Company in writing within 15 days after receipt
     from  the  Company  of  notice  of  such  pending   registration.   If  the
     registration  for  which the  Company  gives  notice  is a public  offering
     involving an  underwriting,  the Company will so advise the Holders as part
     of the  above-described  written  notice.  In that event,  if the  managing
     underwriter(s)  of the public offering impose a limitation on the number of
     shares of Common Stock that may be included in such Registration  Statement
     because,  in  such  underwriter(s)'  judgment,  such  limitation  would  be
     necessary to effect an orderly public  distribution,  then the Company will
     be  obligated  to  include  only  such  limited  portion,  if  any,  of the
     Registrable  Securities  with respect to which the Holders  have  requested
     inclusion hereunder.  Any exclusion of Registrable  Securities will be made
     pro rata among all holders of the Company's  securities  seeking to include
     shares  of Common  Stock in  proportion  to the  number of shares of Common
     Stock sought to be included by those holders. However, the Company will not
     exclude any  Registrable  Securities  unless the Company has first excluded
     all  outstanding  securities the holders of which are not entitled by right
     to  inclusion  of  securities  in such  Registration  Statement  or are not
     entitled pro rata inclusion with the Registrable Securities.

(2)  No right to registration of Registrable  Securities under this Section 2(b)
     limits in any way the  registration  required under Section 2(a) above. The
     obligations  of the Company under this Section 2(b) expire upon the earlier
     of (i) the effectiveness of the Mandatory  Registration  Statement covering
     all of the Registrable Securities,  (ii) after the Company has afforded the
     opportunity  for the Holders to  exercise  registration  rights  under this
     Section  2(b) for  three (3)  registrations  (provided,  however,  that the
     Holders may include in any additional  Registration  Statement filed by the
     Company the Registrable  Securities  excluded under Section 2(b)(1) above),
     or  (iii)  when  all of the  Registrable  Securities  may be  sold  without
     registration and free of restrictions on transfer.

(c)  Eligibility for Registration. As of the date hereof, the Company represents
     and warrants that it currently does not meet the  requirements  for the use
     of  Form  S-3  for  registration  of  the  sale  by  the  Purchaser  of the
     Registrable  Securities.  The  Company  currently  does  not  meet  the SEC
     requirement provided in the Form S-3 instructions which requires securities
     of the same class as the Common  Shares be listed on a national  securities
     exchange or quoted on Nasdaq.  The Company  represents  that it will file a
     Form S-1 or Form S-2, at the  Company's  discretion  and  depending  on the
     Company's  eligibility for such forms, if it cannot become eligible to file
     a Form S-3.

3.   Additional  Obligations of the Company. In connection with the registration
     of the  Registrable  Securities,  the  Company  shall  have  the  following
     additional obligations:

(a)  The Company shall keep the Registration  Statement required by Section 2(a)
     hereof effective pursuant to Rule 415 under the Securities Act at all times
     during the Registration Period as defined in Section 1(e) above.

(b)  The Registration Statement (including any amendments or supplements thereto
     and prospectuses  contained therein) filed by the Company shall not contain
     any untrue  statement of a material  fact or omit to state a material  fact
     required to be stated therein, or necessary to make the statements therein,
     in light of the circumstances in which they were made, not misleading.  The
     Company  shall  prepare  and file with the SEC such  amendments  (including
     post-effective  amendments) and supplements to the  Registration  Statement
     and the prospectus  used in connection with the  Registration  Statement as
     may be necessary to keep the Registration  Statement effective at all times
     during the Registration  Period, and, during such period, shall comply with
     the provisions of the Securities Act with respect to the disposition of all
     Registrable Securities of the Company covered by the Registration Statement
     until such time as all of such Registrable Securities have been disposed of
     in  accordance  with the  intended  methods of  disposition  by the sellers
     thereof as set forth in the Registration Statement. In the event the number
     of  shares of Common  Stock  included  in a  Registration  Statement  filed
     pursuant to this Agreement is  insufficient to cover all of the Registrable
     Securities,  the Company  shall amend,  if  permissible,  the  Registration
     Statement  and/or file a new  Registration  Statement so as to cover all of
     the  Registrable  Securities as soon as  practicable,  but in no event more
     than  twenty (20)  business  days after the Company  first  determines  (or
     reasonably should have determined) the need therefor. The Company shall use
     its  commercially  reasonable  efforts to cause such  amendment  and/or new
     Registration Statement to become effective as soon as practicable following
     the filing thereof.

(c)  The Company shall furnish to each Purchaser  whose  Registrable  Securities
     are included in the  Registration  Statement (i) promptly after the same is
     prepared  and publicly  distributed,  filed with the SEC or received by the
     Company, one copy of the Registration  Statement and any amendment thereto;
     each  preliminary  prospectus  and final  prospectus  and each amendment or
     supplement thereto; and, in the case of the Registration Statement required
     under  Section  2(a)  above,  each  letter  written  by or on behalf of the
     Company to the SEC and each item of  correspondence  from the SEC,  in each
     case relating to such Registration Statement (other than any portion of any
     item thereof which  contains  information  for which the Company has sought
     confidential  treatment);  and (ii) such number of copies of a  prospectus,
     including a preliminary  prospectus,  and all  amendments  and  supplements
     thereto,  and such other documents as such Purchaser may reasonably request
     in order to facilitate the disposition of the Registrable  Securities owned
     by such Purchaser.

(d)  The  Company  shall use its  commercially  reasonable  best  efforts to (i)
     register and qualify the Registrable Securities covered by the Registration
     Statement   under  such  other   securities   or  blue  sky  laws  of  such
     jurisdictions as the Purchaser reasonably request, (ii) prepare and file in
     those jurisdictions such amendments (including  post-effective  amendments)
     and supplements to such  registrations  as may be necessary to maintain the
     effectiveness thereof during the Registration Period, (iii) take such other
     actions  as  may  be  necessary   to  maintain   such   registrations   and
     qualifications in effect at all times during the Registration  Period,  and
     (iv) take all other  actions  reasonably  necessary or advisable to qualify
     the Registrable Securities for sale in such jurisdictions.  Notwithstanding
     the  foregoing  provision,  the Company shall not be required in connection
     therewith  or as a  condition  thereto to (i) qualify to do business in any
     jurisdiction  where it would not  otherwise  be required to qualify but for
     this  Section  3(d),  (ii) subject  itself to general  taxation in any such
     jurisdiction,  (iii)  file a general  consent  to service of process in any
     such  jurisdiction,  (iv)  provide  any  undertakings  that cause more than
     nominal  expense  or burden to the  Company,  or (v) make any change in its
     charter or bylaws, which in each case the Board of Directors of the Company
     determines  to be  contrary  to the best  interests  of the Company and its
     stockholders.

(e)  The Company shall notify each  Purchaser who holds  Registrable  Securities
     being sold  pursuant to a  Registration  Statement of the  happening of any
     event of  which  the  Company  has  knowledge  as a  result  of  which  the
     prospectus  included  in the  Registration  Statement  as  then  in  effect
     includes  an  untrue  statement  of a  material  fact or  omits  to state a
     material  fact  required  to be stated  therein  or  necessary  to make the
     statements  therein,  in light of the  circumstances  under which they were
     made, not misleading (a  "Suspension  Event").  The Company shall make such
     notification as promptly as practicable  after the Company becomes aware of
     such Suspension  Event,  shall promptly,  but in all events within five (5)
     business days, use its  commercially  reasonable  best efforts to prepare a
     supplement  or  amendment  to the  Registration  Statement  to correct such
     untrue statement or omission,  and shall deliver a number of copies of such
     supplement or amendment to each  Purchaser as such Purchaser may reasonably
     request.  Notwithstanding the foregoing provision, the Company shall not be
     required to maintain the effectiveness of the Registration  Statement or to
     amend or  supplement  the  Registration  Statement  for a period  (a "Delay
     Period")  expiring  upon the  later  to occur of (i) the date on which  the
     Company  is  able  to  comply  with  its  disclosure  obligations  and  SEC
     requirements   related  thereto,  or  (iii)  thirty  (30)  days  after  the
     occurrence of the Suspension Event.

(f)  The Company shall use its  commercially  reasonable  efforts to prevent the
     issuance  of any stop  order  or other  suspension  of  effectiveness  of a
     Registration  Statement  and,  if such an order is  issued,  shall  use its
     commercially reasonable best efforts to obtain the withdrawal of such order
     at the  earliest  possible  time and to  notify  each  Purchaser  who holds
     Registrable  Securities  being  sold (or,  in the event of an  underwritten
     offering,  the managing underwriters) of the issuance of such order and the
     resolution thereof.

(g)  The  Company  shall  permit  a single  firm of  counsel  designated  by the
     Purchaser  who holds a majority in interest of the  Registrable  Securities
     being  sold  pursuant  to such  registration  to  review  the  Registration
     Statement  and all  amendments  and  supplements  thereto  (as  well as all
     requests for acceleration or effectiveness  thereof) a reasonable period of
     time prior to their filing with the SEC, and shall not file any document in
     a form to which such counsel reasonably objects.

(h)  At the request of any Purchaser who holds Registrable Securities being sold
     pursuant to such  registration,  the Company shall furnish on the date that
     Registrable  Securities  are  delivered  to  an  underwriter  for  sale  in
     connection with the Registration  Statement (i) a letter,  dated such date,
     from the Company's  independent  certified  public  accountants in form and
     substance  as  is  customarily   given  by  independent   certified  public
     accountants to underwriters in an underwritten  public offering,  addressed
     to the  Purchaser;  and (ii) an  opinion,  dated  such date,  from  counsel
     representing the Company for purposes of such  Registration  Statement,  in
     form  and  substance  as is  customarily  given in an  underwritten  public
     offering, addressed to the underwriters and Purchaser.

(i)  The Company  shall make  available for  inspection  by any Purchaser  whose
     Registrable  Securities are being sold pursuant to such  registration,  any
     underwriter  participating in any disposition  pursuant to the Registration
     Statement, and any attorney, accountant or other agent retained by any such
     Purchaser or underwriter  (collectively,  the "Inspectors"),  all pertinent
     financial and other records,  pertinent  corporate documents and properties
     of the  Company  (collectively,  the  "Records"),  as shall  be  reasonably
     necessary  to  enable  each   Inspector  to  exercise  its  due   diligence
     responsibility,  and cause the Company's officers,  directors and employees
     to supply all  information  which any Inspector may reasonably  request for
     purposes of such due  diligence;  provided,  however,  that each  Inspector
     shall hold in  confidence  and shall not make any  disclosure  (except to a
     Purchaser) of any Record or other information which the Company  determines
     in good faith to be confidential, and of which determination the Inspectors
     are so notified,  unless (i) the disclosure of such Records is necessary to
     avoid or correct a misstatement or omission in any Registration  Statement,
     (ii) the release of such Records is ordered pursuant to a subpoena or other
     order from a court or government  body of competent  jurisdiction,  or such
     release is  reasonably  necessary in  connection  with  litigation or other
     legal  process  or (iii)  the  information  in such  Records  has been made
     generally  available to the public other than by disclosure in violation of
     this or any other agreement.  The Company shall not be required to disclose
     any  confidential  information  in such Records to any Inspector  until and
     unless such Inspector  shall have entered into  confidentiality  agreements
     (in form and substance  satisfactory  to the Company) with the Company with
     respect  thereto,  substantially  in the form of this  Section  3(j).  Each
     Purchaser  agrees that it shall,  upon  learning  that  disclosure  of such
     Records  is  sought  in or by a court  or  governmental  body of  competent
     jurisdiction or through other means,  give prompt notice to the Company and
     allow the Company,  at the  Company's  expense,  to  undertake  appropriate
     action to prevent  disclosure of, or to obtain a protective  order for, the
     Records  deemed  confidential.  Nothing herein shall be deemed to limit the
     Purchaser's'  ability to sell  Registrable  Securities in a manner which is
     otherwise consistent with applicable laws and regulations.

(j)  The Company shall hold in confidence  and shall not make any  disclosure of
     information  concerning  the  Purchaser  provided to the  Company  pursuant
     hereto  unless (i)  disclosure of such  information  is necessary to comply
     with  federal  or  state  securities  laws,  (ii)  the  disclosure  of such
     information is necessary to avoid or correct a misstatement  or omission in
     any  Registration  Statement,  (iii) the  release  of such  information  is
     ordered  pursuant to a subpoena or other order from a court or governmental
     body of competent jurisdiction,  or such release is reasonably necessary in
     connection with litigation or other legal process or (iv) such  information
     has been made generally available to the public other than by disclosure in
     violation of this or any other agreement. The Company agrees that it shall,
     upon learning that disclosure of such information  concerning the Purchaser
     is sought in or by a court or governmental  body of competent  jurisdiction
     or through  other means,  give prompt notice to the Purchaser and allow the
     Purchaser,  at their expense,  to undertake  appropriate  action to prevent
     disclosure of, or to obtain a protective order for, such information.

(k)  The Company shall provide a transfer  agent and  registrar,  which may be a
     single entity, for the Registrable  Securities not later than the effective
     date of the Registration Statement.

(l)  The  Company  shall  cooperate  with the  Purchaser  who  hold  Registrable
     Securities being sold and the managing underwriter or underwriters, if any,
     to facilitate  the timely  preparation  and delivery of  certificates  (not
     bearing any restrictive legends) representing  Registrable Securities to be
     sold pursuant to the Registration Statement and enable such certificates to
     be in such  denominations  or amounts as the case may be, and registered in
     such names as the  managing  underwriter  or  underwriters,  if any, or the
     Purchaser may reasonably request; and, within three (3) business days after
     a Registration  Statement which includes Registrable  Securities is ordered
     effective  by the SEC,  the Company  shall  deliver,  and shall cause legal
     counsel  selected by the Company to deliver,  to the transfer agent for the
     Registrable  Securities  (with copies to the  Purchaser  whose  Registrable
     Securities are included in such Registration Statement) instructions to the
     transfer  agent to issue new  stock  certificates  without a legend  and an
     opinion of such counsel that the Registrable Shares have been registered.

(m)  The Company shall take all other reasonable  actions  necessary to expedite
     and facilitate  disposition by the Purchaser of the Registrable  Securities
     pursuant to the Registration Statement.

(n)  At the request of any  Purchaser,  the Company shall  promptly  prepare and
     file with the SEC such amendments (including post-effective amendments) and
     supplements  to  a  Registration  Statement  and  the  prospectus  used  in
     connection with the Registration  Statement as may be necessary in order to
     change the plan of distribution set forth in such Registration Statement to
     conform to written  information  supplied to the Company by such  Purchaser
     for such purpose.

(o)  The Company shall comply with all applicable laws related to a Registration
     Statement and offering and sale of securities and all applicable  rules and
     regulations of governmental authorities in connection therewith.

4.   Obligations of the Purchaser.  In connection  with the  registration of the
     Registrable Securities, the Purchaser shall have the following obligations:

(a)  It shall be a condition precedent to the obligations of the Company to take
     any action  pursuant to this  Agreement  with respect to the Purchaser that
     the  Purchaser  shall  furnish to the Company  such  information  regarding
     itself,  the number of Registrable  Securities  held by it and the intended
     method of disposition of the Registrable  Securities held by it as shall be
     reasonably  required by rules of the SEC to effect the  registration of the
     Registrable Securities.  The information so provided by any given Purchaser
     shall be included without material alteration in the Registration Statement
     and shall not be modified  without such  Purchaser's  written  consent.  At
     least ten (10) business days prior to the first anticipated  filing date of
     the Registration  Statement,  the Company shall notify the Purchaser of the
     information  the  Company  requires  from each  Purchaser  (the  "Requested
     Information")  if such  Purchaser  elects  to have any of such  Purchaser's
     Registrable  Securities included in the Registration  Statement.  If within
     five (5)  business  days of such notice the Company  has not  received  the
     Requested Information from a Purchaser (a "Non-Responsive Purchaser"), then
     the  Company  may  file  the  Registration   Statement   without  including
     Registrable   Securities  of  such   Non-Responsive   Purchaser   once  the
     Registration  Statement has been declared  effective by the SEC the Company
     shall  not  be  obligated  to  file  a  post-effective   amendment  to  the
     Registration Statement to include, or otherwise register the resale of, the
     shares of such Non-Responsive Purchaser.

(b)  The  Purchaser,   by  the   Purchaser's'   acceptance  of  the  Registrable
     Securities, agrees to cooperate with the Company as reasonably requested by
     the  Company  in  connection   with  the  preparation  and  filing  of  the
     Registration  Statement hereunder,  unless any given Purchaser has notified
     the Company in writing of such Purchaser's  election to exclude all of such
     Purchaser's Registrable Securities from the Registration Statement.

(c)  In  the  event  the  Purchaser  holding  a  majority  in  interest  of  the
     Registrable Securities being registered determine to engage the services of
     an  underwriter,  the  Purchaser  agrees  to enter  into and  perform  such
     Purchaser's'  obligations  under an  underwriting  agreement,  in usual and
     customary form, including,  without limitation,  customary  indemnification
     and  contribution  obligations,  with  the  managing  underwriter  of  such
     offering and take such other actions as are reasonably required in order to
     expedite or  facilitate  the  disposition  of the  Registrable  Securities,
     unless  any  Purchaser  have  notified  the  Company  in  writing  of  such
     Purchaser's  election  to  exclude  all of  such  Purchaser's'  Registrable
     Securities from the applicable  Registration  Statement. No Purchaser shall
     be obligated to participate in any such underwriting.

(d)  The Purchaser  agrees that,  upon receipt of any notice from the Company of
     the  happening of any event of the kind  described in Section 3(f) or 3(g),
     the Purchaser  will  immediately  discontinue  disposition  of  Registrable
     Securities pursuant to the Registration Statement covering such Registrable
     Securities   until  such   Purchaser's'   receipt  of  the  copies  of  the
     supplemented  or amended  prospectus  contemplated  by Section 3(f) or 3(g)
     and, if so directed by the Company,  such  Purchaser  shall  deliver to the
     Company (at the  expense of the  Company)  or destroy  (and  deliver to the
     Company a certificate of destruction)  all copies,  other than file copies,
     in such Purchaser's possession, of the prospectus covering such Registrable
     Securities current at the time of receipt of such notice.

(e)  No Purchaser may  participate in any  underwritten  registration  hereunder
     unless  such  Purchaser  (i)  agrees to sell such  Purchaser's  Registrable
     Securities on the basis provided in any underwriting  arrangements approved
     by the  Purchaser  entitled  hereunder to approve such  arrangements,  (ii)
     completes and executes all questionnaires, powers of attorney, indemnities,
     underwriting  agreements and other documents  reasonably required under the
     terms of such  underwriting  arrangements,  and (iii) agrees to pay its pro
     rata share of all underwriting discounts and commissions and other fees and
     expenses  of  investment  bankers  and  any  manager  or  managers  of such
     underwriting and legal expenses of the underwriter  applicable with respect
     to its  Registrable  Securities,  in each case to the extent not payable by
     the Company pursuant to the terms of this Agreement.

5.   Expenses of Registration.  All expenses,  other than underwriting discounts
     and  commissions,  incurred in connection  with  registrations,  filings or
     qualifications pursuant to Sections 2 and 3, including, without limitation,
     all registration,  listing and qualifications fees, printers and accounting
     fees,  the fees and  disbursements  of  counsel  for the  Company,  and the
     reasonable fees and  disbursements of one counsel selected by the Purchaser
     pursuant to Section 3(e) hereof, shall be borne by the Company.

6.   Indemnification.  In the event any Registrable Securities are included in a
     Registration Statement under this Agreement:

(a)  To the  extent  permitted  by law,  the  Company  will  indemnify  and hold
     harmless  each  Purchaser  who  holds  such  Registrable  Securities,   the
     directors,  if any,  of  such  Purchaser,  the  officers,  if any,  of such
     Purchaser,  each person,  if any, who  controls  any  Purchaser  within the
     meaning of the  Securities  Act or the Exchange  Act, any  underwriter  (as
     defined in the Securities Act) for the Purchaser, the directors, if any, of
     such underwriter and the officers,  if any, of such  underwriter,  and each
     person, if any, who controls any such underwriter within the meaning of the
     Securities Act or the Exchange Act (each, an "Indemnified Person"), against
     any losses,  claims,  damages,  expenses or liabilities  (joint or several)
     (collectively  "Claims")  to which  any of them  become  subject  under the
     Securities  Act, the Exchange Act or otherwise,  insofar as such Claims (or
     actions  or  proceedings,  whether  commenced  or  threatened,  in  respect
     thereof)  arise out of or are based upon any of the  following  statements,
     omissions   or   violations   in  the   Registration   Statement,   or  any
     post-effective  amendment thereof, or any prospectus included therein:  (i)
     any  untrue  statement  or alleged  untrue  statement  of a  material  fact
     contained in the  Registration  Statement or any  post-effective  amendment
     thereof or the  omission or alleged  omission  to state  therein a material
     fact  required to be stated  therein or  necessary  to make the  statements
     therein  not  misleading,  (ii) any  untrue  statement  or  alleged  untrue
     statement of a material  fact  contained in any  preliminary  prospectus if
     used  prior  to the  effective  date of  such  Registration  Statement,  or
     contained  in the final  prospectus  (as  amended or  supplemented,  if the
     Company files any amendment thereof or supplement  thereto with the SEC) or
     the  omission  or alleged  omission  to state  therein  any  material  fact
     necessary  to  make  the   statements   made  therein,   in  light  of  the
     circumstances under which the statements therein were made, not misleading,
     or  (iii)  any  violation  or  alleged  violation  by  the  Company  of the
     Securities Act, the Exchange Act or any state securities law or any rule or
     regulation  (the matters in the foregoing  clauses (i) through (iii) being,
     collectively,  "Violations").  Subject  to the  restrictions  set  forth in
     Section 6(c) with respect to the number of legal counsel, the Company shall
     reimburse the Purchaser and each such  underwriter or  controlling  person,
     promptly as such  expenses are  incurred  and are due and payable,  for any
     legal fees or other reasonable expenses incurred by them in connection with
     investigating or defending any such Claim.  Notwithstanding anything to the
     contrary contained herein, the indemnification  agreement contained in this
     Section 6(a): (A) shall not apply to a Claim arising out of or based upon a
     Violation which occurs in reliance upon and in conformity with  information
     furnished  in  writing  to  the  Company  by  any  Indemnified   Person  or
     underwriter  for such  Indemnified  Person  expressly for use in connection
     with the  preparation of the  Registration  Statement or any such amendment
     thereof or supplement thereto, if such prospectus was timely made available
     by the Company  pursuant to Section  3(c)  hereof;  (B) with respect to any
     preliminary  prospectus  shall not inure to the  benefit of any such person
     from whom the person  asserting any such Claim  purchased  the  Registrable
     Securities  that are the  subject  thereof (or to the benefit of any person
     controlling  such  person) if the untrue  statement or omission of material
     fact  contained  in  the  preliminary   prospectus  was  corrected  in  the
     prospectus,  as then amended or  supplemented,  if a prospectus  was timely
     made  available by the Company  pursuant to Section  3(c)  hereof;  and (C)
     shall  not  apply  to  amounts  paid in  settlement  of any  Claim  if such
     settlement is effected  without the prior  written  consent of the Company,
     which consent shall not be  unreasonably  withheld.  Such  indemnity  shall
     remain in full force and effect regardless of any investigation  made by or
     on behalf of the Indemnified  Persons and shall survive the transfer of the
     Registrable Securities by the Purchaser pursuant to Section 9.

(b)  In  connection  with any  Registration  Statement  in which a Purchaser  is
     participating,  each such Purchaser,  severally and not jointly,  agrees to
     indemnify and hold harmless,  to the same extent and in the same manner set
     forth in Section  6(a),  the Company,  each of its  directors,  each of its
     officers who signs the  Registration  Statement,  each person,  if any, who
     controls  the  Company  within  the  meaning of the  Securities  Act or the
     Exchange Act, any underwriter and any other stockholder  selling securities
     pursuant to the Registration  Statement or any of its directors or officers
     or any person who  controls  such  stockholder  or  underwriter  within the
     meaning  of the  Securities  Act  or the  Exchange  Act  (collectively  and
     together with an Indemnified Person, an "Indemnified  Party"),  against any
     Claim to which any of them may become  subject,  under the Securities  Act,
     the  Exchange Act or  otherwise,  insofar as such Claim arises out of or is
     based  upon any  Violation,  in each  case to the  extent  (and only to the
     extent) that such Violation  occurs in reliance upon and in conformity with
     written  information  furnished to the Company by such Purchaser  expressly
     for use in connection with such Registration Statement,  and such Purchaser
     will promptly reimburse any legal or other expenses  reasonably incurred by
     them  in  connection  with  investigating  or  defending  any  such  Claim;
     provided,  however,  that the indemnity agreement contained in this Section
     6(b) shall not apply to  amounts  paid in  settlement  of any Claim if such
     settlement is effected without the prior written consent of such Purchaser,
     which  consent  shall  not  be  unreasonably  withheld;  provided  further,
     however,  that the  Purchaser  shall be liable  under this Section 6(b) for
     only that  amount of a Claim as does not  exceed the net  proceeds  to such
     Purchaser  as a result of the sale of  Registrable  Securities  pursuant to
     such Registration Statement.  Such indemnity shall remain in full force and
     effect  regardless  of any  investigation  made  by or on  behalf  of  such
     Indemnified  Party  and  shall  survive  the  transfer  of the  Registrable
     Securities by the Purchaser pursuant to Section 9. Notwithstanding anything
     to the contrary contained herein, the  indemnification  agreement contained
     in this Section 6(b) with respect to any preliminary  prospectus  shall not
     inure to the benefit of any  Indemnified  Party if the untrue  statement or
     omission of material  fact  contained  in the  preliminary  prospectus  was
     corrected  on a  timely  basis  in  the  prospectus,  as  then  amended  or
     supplemented.

(c)  Promptly after receipt by an Indemnified  Person or Indemnified Party under
     this Section 6 of notice of the  commencement of any action  (including any
     governmental  action),  such Indemnified Person or Indemnified Party shall,
     if a Claim in respect  thereof is to made  against any  indemnifying  party
     under this Section 6, deliver to the indemnifying party a written notice of
     the commencement  thereof and this indemnifying  party shall have the right
     to participate  in, and, to the extent the  indemnifying  party so desires,
     jointly with any other  indemnifying  party  similarly  noticed,  to assume
     control of the defense  thereof with counsel  mutually  satisfactory to the
     indemnifying  parties;  provided,  however,  that an Indemnified  Person or
     Indemnified Party shall have the right to retain its own counsel,  with the
     fees  and  expenses  to be  paid  by the  indemnifying  party,  if,  in the
     reasonable  opinion of counsel  retained  by the  indemnifying  party,  the
     representation  by such counsel of the  Indemnified  Person or  Indemnified
     Party and the indemnifying  party would be  inappropriate  due to actual or
     potential   differing   interests   between  such  Indemnified   Person  or
     Indemnified  Party and other  party  represented  by such  counsel  in such
     proceeding.  The Company shall pay for only one separate  legal counsel for
     the  Purchaser;  such legal  counsel  shall be  selected  by the  Purchaser
     holding a majority in interest of the Registrable  Securities.  The failure
     to deliver  written  notice to the  indemnifying  party within a reasonable
     time  of the  commencement  of any  such  action  shall  not  relieve  such
     indemnifying   party  of  any  liability  to  the  Indemnified   Person  or
     Indemnified  Party  under  this  Section 6,  except to the extent  that the
     indemnifying  party is prejudiced in its ability to defend such action. The
     indemnification  required  by  this  Section  6 shall  be made by  periodic
     payments of the amount  thereof during the course of the  investigation  or
     defense, as such expense,  loss, damage or liability is incurred and is due
     and payable. The provisions of this Section 6 shall survive the termination
     of this Agreement.

7.   Contribution.  If the  indemnification  provided for in Section 6 herein is
     unavailable to the  Indemnified  Parties in respect of any losses,  claims,
     damages or  liabilities  referred  to herein  (other  than by reason of the
     exceptions provided therein), then each such Indemnifying Party, in lieu of
     indemnifying such Indemnified Party, shall contribute to the amount paid or
     payable  by such  Indemnified  Party as a result  of such  losses,  claims,
     damages  or  liabilities  as  between  the  Company on the one hand and any
     Purchaser on the other, in such proportion as is appropriate to reflect the
     relative fault of the Company and of such Purchaser in connection  with the
     statements or omissions which resulted in such losses,  claims,  damages or
     liabilities,  as well as any other relevant equitable  considerations.  The
     relative  fault of the Company on the one hand and of any  Purchaser on the
     other shall be determined by reference to, among other things,  whether the
     untrue or alleged  untrue  statement  of a  material  fact or  omission  or
     alleged  omission to state a material fact relates to information  supplied
     by the Company or by such Purchaser.

     In no event shall the  obligation of any  Indemnifying  Party to contribute
under this Section 7 exceed the amount that such  Indemnifying  Party would have
been obligated to pay by way of indemnification if the indemnification  provided
for  under   Section  6(a)  or  6(b)  hereof  had  been   available   under  the
circumstances.

     The Company and the Purchaser agree that it would not be just and equitable
if  contribution  pursuant  to  this  Section  7 were  determined  by  pro  rata
allocation (even if the Purchaser or the underwriters were treated as one entity
for such  purpose)  or by any other  method of  allocation  which  does not take
account of the equitable considerations referred to in the immediately preceding
paragraphs.  The amount paid or payable by an  Indemnified  Party as a result of
the losses,  claims,  damages  and  liabilities  referred to in the  immediately
preceding paragraphs shall be deemed to include,  subject to the limitations set
forth above, any legal or other expenses reasonably incurred by such Indemnified
Party in connection  with  investigating  or defending any such action or claim.
Notwithstanding  the  provisions  of this section,  no Purchaser or  underwriter
shall be required to contribute  any amount in excess of the amount by which (i)
in the case of any Purchaser,  the net proceeds  received by such Purchaser from
the sale of Registrable  Securities or (ii) in the case of an  underwriter,  the
total price at which the Registrable  Securities purchased by it and distributed
to the public were offered to the public  exceeds,  in any such case, the amount
of any damages that such Purchaser or underwriter has otherwise been required to
pay by reason of such untrue or alleged untrue  statement or omission or alleged
omission. No person guilty of fraudulent  misrepresentation  (within the meaning
of Section 11(f) of the Securities Act ) shall be entitled to contribution  from
any person who was not guilty of such fraudulent misrepresentation.

8.   Public  Information.  With a view to making  available to the Purchaser the
     benefits  of Rule 144  promulgated  under the  Securities  Act or any other
     similar  rule or  regulation  of the SEC that may at any  time  permit  the
     Purchaser  to  sell  securities  of  the  Company  to  the  public  without
     registration ("Rule 144"), the Company agrees to:

(a)  File  with the SEC in a timely  manner  and  make  and keep  available  all
     reports and other documents  required of the Company under the Exchange Act
     so long as the Company remains subject to such  requirements and the filing
     and  availability  of such reports and other  documents is required for the
     applicable provisions of Rule 144; and

(b)  Furnish  to the  Purchaser  so  long  as  the  Purchaser  hold  Registrable
     Securities,  promptly upon request,  (i) a written statement by the Company
     that it has complied  with the reporting  requirements  of Rule 144 and the
     Exchange Act, (ii) a copy of the most recent annual or quarterly  report of
     the Company and such other  reports and  documents so filed by the Company,
     and (iii) such other  information as may be reasonably  requested to permit
     the  Purchaser  to  sell  such  securities  pursuant  to Rule  144  without
     registration.

9.   Assignment of Registration  Rights. The rights to have the Company register
     Registrable  Securities  pursuant to this Agreement shall be  automatically
     assigned by the Purchaser to transferees or assignees of all or any portion
     of such securities or Warrants exercisable into Registrable Securities only
     if (i) the Purchaser  agrees in writing with the  transferee or assignee to
     assign  such  rights,  and a copy of such  agreement  is  furnished  to the
     Company within a reasonable  time after such  assignment,  (ii) the Company
     is, within a reasonable  time after such transfer or assignment,  furnished
     with written notice of the name and address of such  transferee or assignee
     and the securities with respect to which such registration rights are being
     transferred  or assigned,  (iii)  following such transfer or assignment the
     further  disposition  of such  securities by the  transferee or assignee is
     restricted  under the Securities Act and applicable  state securities laws,
     (iv) at or  before  the  time  the  Company  received  the  written  notice
     contemplated  by clause (ii) of this  sentence,  the transferee or assignee
     agrees in writing  with the  Company  to be bound by all of the  provisions
     contained herein, (v) such transfer shall have been made in accordance with
     the  applicable  requirements  of the  Purchase  Agreement,  and (vi)  such
     transferee  shall be an  "accredited  investor"  as that term is defined in
     Rule 501 of Regulation D promulgated under the Securities Act.

10.  Amendment of  Registration  Rights.  Provisions  of this  Agreement  may be
     amended and the observance  thereof may be waived (either generally or in a
     particular  instance and either  retroactively or prospectively)  only with
     the written consent of the Company and Purchaser  holding a majority of the
     Registrable  Securities  then  outstanding.  Any such  amendment  or waiver
     effected  in  accordance  with this  paragraph  shall be binding  upon each
     holder of  Registrable  Securities  (including  securities  into which such
     securities  have been  converted or exchanged or for which such  securities
     have been  exercised) and each future holder of all such  securities.  Each
     Purchaser acknowledges that by the operation of this paragraph, the holders
     of a majority of the Registrable  Securities then outstanding will have the
     right and power to diminish or eliminate all rights of Purchaser under this
     Agreement.

11.  Miscellaneous.

(a)  Conflicting  Instructions.  A person  or entity is deemed to be a holder of
     Registrable  Securities  whenever such person or entity owns of record such
     Registrable Securities.  If the Company receives conflicting  instructions,
     notices or elections  from two or more persons or entities  with respect to
     the same  Registrable  Securities,  the Company shall act upon the basis of
     instructions, notice or election received from the registered owner of such
     Registrable Securities.

(b)  Notices.  Any notices  required or permitted to be given under the terms of
     this Agreement  shall be sent by certified or registered  mail (with return
     receipt  requested)  or  delivered  personally  or by courier  (including a
     nationally   recognized   overnight   delivery  service)  or  by  facsimile
     transmission. Any notice so given shall be deemed effective upon receipt if
     delivered personally, by U.S. Mail or by courier or facsimile transmission,
     in each case  addressed to a party at the  following  address or such other
     address as each such party  furnishes to the other in accordance  with this
     Section 12(b), and:

                  if to the Company:
                  -----------------
                  Miravant Medical Technologies
                  336 Bollay Drive
                  Santa Barbara, CA  93117
                  Attention:  John M. Philpott
                  Facsimile:  (805) 685-1901

                  with copy to:

                  Sheppard Mullin Richter & Hampton, LLP

                  800 Anacapa Street

                  Santa Barbara, CA  93101

                  Attention:  Joseph E. Nida, Esq.
                  Facsimile:  (805) 568-1955

                  with copy to:
                  -------------
                  Wilson Sonsini Goodrich & Rosati
                  650 Page Mill Road
                  Palo Alto, CA 94304-1050
                  Attention:  John Sheridan, Esq.
                  Facsimile:  (650) 493-6811




                  If to the Purchaser:

                  ===============================
                  -------------------------------

                  Attention:

                  Facsimile: ______________________

                  with a copy to:
                  --------------
                  Stradling, Yocca, Carlson & Rauth
                  660 Newport Center Drive, Suite 1600
                  Newport Beach, CA 92660
                  Attention: Bruce Feucther
                  Facsimile:  (949) 823-5123


(c)      Waiver. Failure of any party to exercise any right or remedy under this
         Agreement or otherwise, or delay by a party in exercising such right or
         remedy, shall not operate as a waiver thereof.

(d)      Governing Law. This Agreement shall be governed by and construed in
         accordance with the laws of the State of California applicable to
         contracts made and to be performed in the State of California.

(e)      Severability. In the event that any provision of this Agreement is
         invalid or unenforceable under any applicable statute or rule of law,
         then such provision shall be deemed inoperative to the extent that it
         may conflict therewith and shall be deemed modified to conform with
         such statute or rule of law. Any provision hereof which may prove
         invalid or unenforceable under any law shall not affect the validity or
         enforceability of any other provision hereof.

(f)      Entire Agreement. This Agreement and the Purchase Agreement (including
         all schedules and exhibits thereto) constitute the entire agreement
         among the parties hereto with respect to the subject matter hereof.
         There are no restrictions, promises, warranties or undertakings, other
         than those set forth or referred to herein or therein. This Agreement
         supersedes all prior agreements and understandings among the parties
         hereto with respect to the subject matter hereof.

(g)      Successors and Assigns. Subject to the requirements of Section 9
         hereof, this Agreement shall inure to the benefit of and be binding
         upon the successors and assigns of each of the parties hereto.

(h)      Use of Pronouns. All pronouns and any variations thereof refer to the
         masculine, feminine or neuter, singular or plural, as the context may
         require.

(i)      Headings. The headings and subheadings in the Agreement are for
         convenience of reference only and shall not limit or otherwise affect
         the meaning hereof.

(j)  Counterparts.  This Agreement may be executed in two or more  counterparts,
     each of which shall be deemed an original but all of which shall constitute
     one and the same agreement.  This Agreement,  once executed by a party, may
     be  delivered  to the other party  hereto by  facsimile  transmission,  and
     facsimile signatures shall be binding on the parties hereto.

(k)  Further  Acts.  Each party  shall do and  perform,  or cause to be done and
     performed,  all such further acts and things, and shall execute and deliver
     all such other agreements, certificates,  instruments and documents, as the
     other  party may  reasonably  request  in order to carry out the intent and
     accomplish  the  purposes of this  Agreement  and the  consummation  of the
     transactions contemplated hereby.

(l)  Remedies.  No provision of this  Agreement  providing for any remedy to the
     Purchaser  shall limit any remedy which would otherwise be available to the
     Purchaser at law or in equity.  Nothing in this  Agreement  shall limit any
     rights a Purchaser may have with any applicable federal or state securities
     laws with  respect  to the  investment  contemplated  hereby.  The  Company
     acknowledges  that a breach by it of its  obligations  hereunder will cause
     irreparable harm to a Purchaser. Accordingly, the Company acknowledges that
     the remedy at law for a breach of its obligations under this Agreement will
     be inadequate and agrees,  in the event of a breach or threatened breach by
     the Company of the provisions of this Agreement,  that a Purchaser shall be
     entitled,  in addition to all other  available  remedies,  to an injunction
     restraining  any breach and  requiring  immediate  compliance,  without the
     necessity of showing  economic loss and without any bond or other  security
     being required.
                      (signature page immediately follows)





         IN WITNESS WHEREOF, the parties have caused this Registration Rights
Agreement to be duly executed as of the date first above written.

                                    COMPANY:

                                       MIRAVANT MEDICAL TECHNOLOGIES


                                       By:
                                        ----------------------------------------
                                        Name:    John M. Philpott
                                        Title:   Chief Financial Officer


                                   PURCHASER:

                                       ST. CLOUD INVESTMENTS, LTD.
                                       a British Virgin Islands company

                                       By:
                                       -----------------------------------------
                                       Name:
                                       Title: