The Sigma SD1 is a professional APS-C DSLR featuring the 46 MP Foveon X3 Merrill sensor — the highest resolution APS-C DSLR at launch — in a rugged body compatible with the full Sigma SA lens lineup. It delivers extraordinary image quality with true three-layer color capture compared to conventional Bayer sensor cameras. The SD1 is the flagship camera in Sigma's SD DSLR series.
Product released: June 1, 2011
Latest firmware version
Version 1.14, released April 23, 2014
What's new in version 1.14
Accuracy of Auto Focus is improved by enhancement of the algorithm.Please use a dedicated AC adapter or a fully charged battery.Do not open the BATTERY/CARD COVER or operate the camera during the firmware update.Do not turn off the camera during the firmware update.This firmware update requires two files, SD1U_114.BIN and SD1V_114.BIN. Firstly, please download and save those files on a CF card.For firmware Ver. 1.08 or earlier, there are 2 steps to complete the firmware update. Once you finish the first step (STEP 01 – STEP 10), please proceed to the second step (STEP 11 – STEP 14).