The Sigma SD1 is a professional APS-C DSLR in a rugged body compatible with the full Sigma SA lens lineup, featuring the 46 MP Foveon X3 Merrill sensor that made it the highest resolution APS-C DSLR at launch. 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
Last checked for updates: Oct 31, 2026 18:29 UTC
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).
The Sigma SD1 is a professional APS-C DSLR in a rugged body compatible with the full Sigma SA lens lineup, featuring the 46 MP Foveon X3 Merrill sensor that made it the highest resolution APS-C DSLR at launch. 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. It was originally released on June 1, 2011.
What is the latest firmware version of Sigma SD1 Camera?
The latest firmware version of Sigma SD1 Camera is 1.14. It was released on April 23, 2014.
What changed in Sigma SD1 Camera firmware version 1.14?
Sigma SD1 Camera firmware version 1.14 includes the following changes: 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 finis...
Where can I download the latest Sigma SD1 Camera firmware?
Details and download instructions for the latest Sigma SD1 Camera firmware (version 1.14) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/sd1/