The Sigma SD1 Merrill is a professional APS-C DSLR featuring the 46 MP Foveon X3 Merrill sensor at a revised retail price, making the SD1's exceptional three-layer color capture more accessible. It retains the full weather-sealed magnesium alloy body and Sigma SA lens compatibility of the original SD1. The SD1 Merrill is the revised flagship of Sigma's SD DSLR line.
Product released: June 1, 2012
Latest firmware version
Version 1.09, released April 23, 2014
Verified by LatestUpdate: June 18, 2026
What's new in version 1.09
Accuracy of Auto Focus is improved by enhancement of the algorithm.
The Sigma SD1 Merrill is a professional APS-C DSLR featuring the 46 MP Foveon X3 Merrill sensor at a revised retail price, making the SD1's exceptional three-layer color capture more accessible. It retains the full weather-sealed magnesium alloy body and Sigma SA lens compatibility of the original SD1. The SD1 Merrill is the revised flagship of Sigma's SD DSLR line. It was originally released on June 1, 2012.
What is the latest firmware version for the Sigma SD1 Merrill Camera?
The latest firmware version for the Sigma SD1 Merrill Camera is 1.09. It was released on April 23, 2014.
What changed in Sigma SD1 Merrill Camera firmware version 1.09?
Sigma SD1 Merrill Camera firmware version 1.09 includes the following changes: Accuracy of Auto Focus is improved by enhancement of the algorithm.
How do I update the Sigma SD1 Merrill Camera firmware?
To update the Sigma SD1 Merrill Camera firmware, download the latest version (1.09) from Sigma's website. Follow Sigma's installation instructions, which typically involve copying the firmware file to a memory card or connecting via USB. You can download the latest firmware from Sigma's support page.
Where can I download the latest Sigma SD1 Merrill Camera firmware?
Details and download instructions for the latest Sigma SD1 Merrill Camera firmware (version 1.09) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/sd1-merrill/
How do I check for Sigma SD1 Merrill Camera firmware updates?
You can track Sigma SD1 Merrill Camera firmware updates automatically on LatestUpdate.io. We monitor Sigma's releases and notify you when new firmware versions are available, so you never miss an update.
Who makes the Sigma SD1 Merrill Camera?
The Sigma SD1 Merrill Camera is manufactured by Sigma. Visit the official product page for more information.