Sigma updates SD1 firmware


posted Monday, May 14, 2012 at 5:47 PM EDT

Sigma's SD1 digital SLR. Photo provided by Sigma. Click for our Sigma SD1 preview!At the end of last week, Sigma Corp. of America announced firmware updates for both variants of its flagship digital SLR, the Sigma SD1.

Based around a Foveon X3 CMOS image sensor that outputs 15.4 megapixel images with full color information at every pixel location, the SD1 and SD1 Merrill are the company's first high-end, weather-sealed DSLR models. (They differ from each other in name only, with the updated name being an homage to the late co-founder of Foveon and the co-inventor of the Foveon sensor technology, Dick Merrill.)

The new firmware for both SD1 variants makes identical changes, although the version number differs between the two. For the original Sigma SD1, the new version number is v1.06, and the firmware can be downloaded here. SD1 Merrill owners will want to grab a different download, which will bring them to version 1.01.

According to Sigma, the following changes have been made:

  • Accuracy of Auto Focus is improved.

  • Accuracy of flashgun light control is improved.

  • Various bugs have been corrected to achieve more stable operation.