The Sigma SD9 is an APS-C DSLR and one of the first commercially available cameras to use a Foveon X3 direct image sensor, capturing full color data at each pixel location rather than interpolating via a Bayer filter. It features a 3.54 MP Foveon sensor (10.29 MP total) and Sigma SA lens mount compatibility. The SD9 was the first Sigma DSLR and launched the SD series.
Product released: November 1, 2002
Latest firmware version
Version 1642, released November 27, 2003
Last checked for updates: Oct 31, 2026 17:38 UTC
What's new in version 1642
Reduced tendency to highlight blowouts and “blooming” in overexposed long – exposure shots.Several bugs fixed.
The Sigma SD9 is an APS-C DSLR and one of the first commercially available cameras to use a Foveon X3 direct image sensor, capturing full color data at each pixel location rather than interpolating via a Bayer filter. It features a 3.54 MP Foveon sensor (10.29 MP total) and Sigma SA lens mount compatibility. The SD9 was the first Sigma DSLR and launched the SD series. It was originally released on November 1, 2002.
What is the latest firmware version of Sigma SD9 Camera?
The latest firmware version of Sigma SD9 Camera is 1642. It was released on November 27, 2003.
What changed in Sigma SD9 Camera firmware version 1642?
Sigma SD9 Camera firmware version 1642 includes the following changes: Reduced tendency to highlight blowouts and “blooming” in overexposed long – exposure shots.Several bugs fixed.
Where can I download the latest Sigma SD9 Camera firmware?
Details and download instructions for the latest Sigma SD9 Camera firmware (version 1642) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/sd9/