Sigma has released updates for its SD1 and SD1 Merrill cameras - as well as for its Photo Pro software - to add support for the recently released 18-35 F1.8 DC HSM lens. On the camera side, the SD1 firmware update improves color in peripheral areas of the image when the aperture is wide open. As for software, Sigma's Photo Pro v5.5.3 is now optimized for Raw (X3F) images taken with the SD1 camera and 18-35 lens.

The updates will be available for download shortly on Sigma's support website.

Full change log:

1. SD1 & SD1 Merrill (Ver1.11 / Ver1.06) firmware update:

When it is used with the 18-35mm F1.8 DC HSM, it refines the colors in peripheral areas of the images taken at or around aperture of F1.8.

2. SIGMA Photo Pro Ver5.5.3 

(Win)

When the image is taken with the combination of the 18-35mm F1.8 DC HSM and SD1 or SD1 Merrill, the development of the image from RAW data (X3F file) is optimized with this updated version.

(Mac)

When the image is taken with the combination of the 18-35mm F1.8 DC HSM and SD1 or SD1 Merrill, the development of the image from RAW data (X3F file) is optimized with this updated version.

It corrects the phenomenon that the review window in SIGMA Photo Pro keeps displaying the first picture while taking different images via SIGMA Capture Pro.