UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                                    ----------------------------
                                                            OMB APPROVAL
                                                    ----------------------------
                                                    OMB Number:        3235-0145
                                                    ----------------------------
                                                    Expires:   December 31, 2005
                                                    ----------------------------
                                                    Estimated average burden
                                                    ---------------------------
                                                    hours per response. . . 11
                                                    ----------------------------


                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                                (Amendment No. )*


                                  SpectRx, Inc.
 -------------------------------------------------------------------------------

                                (Name of Issuer)

                    Common Stock, par value $0.001 per share
 -------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    847635109
                  --------------------------------------------
                                 (CUSIP Number)

                                 October 6, 2004
 -------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)



Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         [ ]      Rule 13d-1(b)
         [X]      Rule 13d-1(c)
         [ ]      Rule 13d-1(d)


*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).



--------------------------------------------------------------------------------

CUSIP No. 847635109              SCHEDULE 13G                Page  2  of 9 Pages

--------------------------------------------------------------------------------

1       NAME OF REPORTING PERSONS./I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
        (Entities Only).

        SDS Capital Group SPC, Ltd.
--------------------------------------------------------------------------------

2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*           (a) [X]
        (See Instructions)
                                                                    (b) [ ]
--------------------------------------------------------------------------------
3       SEC USE ONLY


--------------------------------------------------------------------------------

4       CITIZENSHIP OR PLACE OF ORGANIZATION

        Cayman Islands
--------------------------------------------------------------------------------

                5.   SOLE VOTING POWER          833,340(1)
NUMBER OF
SHARES          ----------------------------------------------------------------
BENEFICIALLY    6.   SHARED VOTING POWER        0
OWNED BY
EACH            ----------------------------------------------------------------
REPORTING       7.   SOLE DISPOSITIVE POWER     833,340
PERSON
WITH            ----------------------------------------------------------------
                8.   SHARED DISPOSITIVE POWER   0

--------------------------------------------------------------------------------
9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       833,340
--------------------------------------------------------------------------------
10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES  [ ]
       (See Instructions)


--------------------------------------------------------------------------------
11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

       7.1%
--------------------------------------------------------------------------------
12     TYPE OF REPORTING PERSON*

       CO
--------------------------------------------------------------------------------
                      *SEE INSTRUCTIONS BEFORE FILLING OUT

(1) Includes 166,670 shares issuable upon the conversion of Series A Convertible
Preferred Stock and 166,670 shares issuable upon the exercise of warrants issued
in connection with a financing which closed on March 26, 2004.





--------------------------------------------------------------------------------

CUSIP No. 847635109              SCHEDULE 13G                Page  3  of 9 Pages

--------------------------------------------------------------------------------

1       NAME OF REPORTING PERSONS./I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
        (Entities Only).

        SDS Management, LLC
--------------------------------------------------------------------------------

2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*           (a) [X]
        (See Instructions)
                                                                    (b) [ ]
--------------------------------------------------------------------------------
3       SEC USE ONLY


--------------------------------------------------------------------------------

4       CITIZENSHIP OR PLACE OF ORGANIZATION

        Delaware
--------------------------------------------------------------------------------

                5.   SOLE VOTING POWER          0
NUMBER OF
SHARES          ----------------------------------------------------------------
BENEFICIALLY    6.   SHARED VOTING POWER        833,340
OWNED BY
EACH            ----------------------------------------------------------------
REPORTING       7.   SOLE DISPOSITIVE POWER     0
PERSON
WITH            ----------------------------------------------------------------
                8.   SHARED DISPOSITIVE POWER   833,340

--------------------------------------------------------------------------------
9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       833,340
--------------------------------------------------------------------------------
10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES  [ ]
       (See Instructions)


--------------------------------------------------------------------------------
11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

       7.1%
--------------------------------------------------------------------------------
12     TYPE OF REPORTING PERSON*

       CO
--------------------------------------------------------------------------------
                      *SEE INSTRUCTIONS BEFORE FILLING OUT




--------------------------------------------------------------------------------

CUSIP No. 847635109              SCHEDULE 13G                Page  4  of 9 Pages

--------------------------------------------------------------------------------

1       NAME OF REPORTING PERSONS./I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
        (Entities Only).

        Mr. Steven Derby
--------------------------------------------------------------------------------

2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*           (a) [X]
        (See Instructions)
                                                                    (b) [ ]
--------------------------------------------------------------------------------
3       SEC USE ONLY


--------------------------------------------------------------------------------

4       CITIZENSHIP OR PLACE OF ORGANIZATION

        United States
--------------------------------------------------------------------------------

                5.   SOLE VOTING POWER          0
NUMBER OF
SHARES          ----------------------------------------------------------------
BENEFICIALLY    6.   SHARED VOTING POWER        833,340
OWNED BY
EACH            ----------------------------------------------------------------
REPORTING       7.   SOLE DISPOSITIVE POWER     0
PERSON
WITH            ----------------------------------------------------------------
                8.   SHARED DISPOSITIVE POWER   833,340

--------------------------------------------------------------------------------
9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       833,340
--------------------------------------------------------------------------------
10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES  [ ]
       (See Instructions)


--------------------------------------------------------------------------------
11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

       7.1%
--------------------------------------------------------------------------------
12     TYPE OF REPORTING PERSON*

       IN
--------------------------------------------------------------------------------
                      *SEE INSTRUCTIONS BEFORE FILLING OUT



--------------------------------------------------------------------------------

CUSIP No. 847635109              SCHEDULE 13G                Page  5  of 9 Pages

--------------------------------------------------------------------------------


Item 1(a).        Name of Issuer:

                  SpectRx, Inc.

Item 1(b).        Address of Issuer's Principal Executive Offices:

                  4955 Avalon Ridge Pkwy., Suite 300
                  Norcross, Georgia 30071

Item 2(a).        Name of Person Filing.
Item 2(b).        Address of Principal Business Office or, if None, Residence.
Item 2(c).        Citizenship.

                  SDS Capital Group SPC, Ltd. (the "Reporting Person")
                  RK Consulting (Cayman) Ltd.
                  P.O. Box 174865
                  Cayman Corporate Center
                  27 Hospital Road
                  Georgetown, Grand Cayman
                  Cayman Islands
                  Cayman Islands corporation

                  SDS Management, LLC (the "Investment Manager")
                  53 Forest Avenue, 2nd Floor
                  Old Greenwich, CT 06870
                  Delaware limited liability company

                  Mr. Steven Derby ("Mr. Derby")
                  Sole Managing Member of the Investment Manager
                  53 Forest Avenue, 2nd Floor
                  Old Greenwich, CT 06870
                  United States citizen

Item 2(d).        Title of Class of Securities:

                  Common Stock, par value $0.001 per share

Item 2(e).        CUSIP Number:

                  847635109

Item 3.           If this statement is filed pursuant to ss.ss.240.13d-1(b) or
                  240.13d-2(b) or (c), check whether the person filing is a:

                  Not Applicable



--------------------------------------------------------------------------------

CUSIP No. 847635109              SCHEDULE 13G                Page  6  of 9 Pages

--------------------------------------------------------------------------------


Item 4.  Ownership.

         The following is information regarding the aggregate number and
         percentage of the class of securities of the issuer identified in Item
         1 as of October 6, 2004:

         1. The Reporting Person.

         (a)      Amount beneficially owned: 833,340 shares of Common Stock (2)

         (b)      Percent of Class: 7.1%

         (c)      Number of shares as to which such person has:

                  (i)      sole power to vote or direct the vote: 833,340

                  (ii)     shared power to vote or direct the vote: 0

                  (iii)    sole power to dispose or direct the disposition of:
                           833,340

                  (iv)     shared power to dispose or direct the disposition of:
                           0

                  (2)      Includes 166,670 shares issuable upon the conversion
                           of Series A Convertible Preferred Stock and 166,670
                           shares issuable upon the exercise of warrants issued
                           in connection with a financing which closed on March
                           26, 2004.

         2.       The Investment Manager - same as Mr. Derby, see below.

         3.       Mr. Derby.

                  (a)      Amount beneficially owned: 833,340 shares of Common
                           Stock

                  (b)      Percent of Class: 7.1%

                  (c)      Number of shares as to which such person has:

                           (i)      sole power to vote or direct the vote: 0

                           (ii)     shared power to vote or direct the vote:
                                    833,340

                           (iii)    sole power to dispose or direct the
                                    disposition of: 0

                           (iv)     shared power to dispose or direct the
                                    disposition of: 833,340



--------------------------------------------------------------------------------

CUSIP No. 847635109              SCHEDULE 13G                Page  7  of 9 Pages

--------------------------------------------------------------------------------


Item 5.  Ownership of Five Percent or Less of a Class.

         Not Applicable

Item 6.  Ownership of More than Five Percent on Behalf of Another Person.

         Not Applicable

Item 7.  Identification and Classification of the Subsidiary Which Acquired the
         Security Being Reported on By the Parent Holding Company.

         Not Applicable

Item8.   Identification and Classification of Members of the Group.

         Not Applicable

Item9.   Notice of Dissolution of Group.

         Not Applicable

Item 10. Certification.

         Certification pursuant to ss.240.13d-1(c):

         By signing below I certify that, to the best of my knowledge and
         belief, the securities referred to above were not acquired and are not
         held for the purpose of or with the effect of changing or influencing
         the control of the issuer of the securities and were not acquired and
         are not held in connection with or as a participant in any transaction
         having that purpose or effect.



--------------------------------------------------------------------------------

CUSIP No. 847635109              SCHEDULE 13G                Page  8  of 9 Pages

--------------------------------------------------------------------------------

                                    SIGNATURE

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

         Dated:  October 8, 2004

                                                SDS CAPITAL GROUP SPC, LTD.
                                                By:  SDS Management, LLC,
                                                     its Investment Manager


                                                By: /s/ Steven Derby
                                                    ----------------------------
                                                    Name:  Steven Derby
                                                    Title: Managing Member


                                                SDS MANAGEMENT, LLC


                                                By: /s/ Steven Derby
                                                    ----------------------------
                                                    Name:  Steven Derby
                                                    Title: Managing Member


                                                    /s/ Steven Derby
                                                --------------------------------
                                                        Steven Derby




--------------------------------------------------------------------------------

CUSIP No. 847635109              SCHEDULE 13G                Page  9  of 9 Pages

--------------------------------------------------------------------------------

                                    EXHIBIT A
                             JOINT FILING AGREEMENT

         This Agreement is filed as an exhibit to this Schedule 13G being filed
by SDS Capital Group SPC, Ltd., SDS Management, LLC and Mr. Steven Derby in
compliance with Rule 13d-1(k) of the Securities and Exchange Commission, which
requires an agreement in writing indicating that this Schedule 13G to which this
Agreement is attached is filed on behalf of the below-named companies and
individuals, that they are each responsible for the timely filing of the
Schedule 13G and any amendments thereto and for the completeness and accuracy of
the information concerning such persons contained therein.

         Dated:  October 8, 2004


                                                SDS CAPITAL GROUP SPC, LTD.
                                                By:  SDS Management, LLC,
                                                     its Investment Manager


                                                By: /s/ Steven Derby
                                                    ----------------------------
                                                    Name:  Steven Derby
                                                    Title: Managing Member


                                                SDS MANAGEMENT, LLC


                                                By: /s/ Steven Derby
                                                    ----------------------------
                                                    Name:  Steven Derby
                                                    Title: Managing Member


                                                    /s/ Steven Derby
                                                --------------------------------
                                                        Steven Derby