Sigma Lens Firmware Update Corrects the Underexposure When Certain Sigma Interchangeable Lenses for Canon are Used on Canon EOS 1DX Mark II

The following video presents Canon EOS-1DX Mark II DSLR Camera: The Mark of Legends:

Watch the featured video to learn about the immense power and phenomenal speed of the EOS1D X Mark II DSLR camera. Discover how this camera delivers a remarkable combination of innovation and refinement for stills and video.

This is an update to the previous blog, Sigma Advisory: Some SIGMA Interchangeable Lenses for CANON are Not Fully Compatible with CANON EOS-1DX Mark II Camera.

NEWS RELEASE

2016.06.24

(Update) Dear Canon EOS-1D X Mark II Users

Thank you for purchasing and using our products.

We would like to announce the availability of new firmware and support for the applicable lenses regarding the phenomenon that exposure of the image may not be accurate, which was announced on May 27th, 2016.
This happens when some SIGMA interchangeable lenses for CANON are used on Canon EOS 1DX Mark II.

If you own the following applicable products, please refer to the information below and update the lens firmware accordingly.

[Benefit of this firmware update] The lens firmware update corrects the phenomenon of some underexposure when the lenses listed below are used and either “Evaluative Metering” or “Center-weighted Average Metering” is selected in Metering
Mode of the camera.

[Applicable products]

SIGMA 20mm F1.4 DG HSM | Art – Canon mount

SIGMA 35mm F1.4 DG HSM | Art – Canon mount

SIGMA 85mm F1.4 EX DG HSM – Canon mount

For customers who own the applicable products listed above, the lens firmware update will be provided free of charge. Please contact your nearest authorized subsidiary/distributors of SIGMA.

For customers who own the SIGMA USB DOCK, and either the SIGMA 20mm F1.4 DG HSM | Art Canon or the SIGMA 35mm F1.4 DG HSM | Art Canon, please update the lens firmware using SIGMA Optimization Pro.

We appreciate your continued support for our company and products.

The following video presents Introducing the Canon EOS-1D X Mark II: Video Features:

The Canon EOS-1D X Mark II is Canon’s flagship DSLR camera. It builds substantially upon Canon’s professional top-end DSLR series, which already includes the EOS-1D X, and its Cinema EOS counterpart, the EOS-1D C.

Join Canon U.S.A.’s Technical Advisor Brent Ramsey as he introduces the video features of the EOS-1D X Mark II camera. In this video, he discusses features such as the 4K capture, movie Frames Per Second, resolutions, JPEG frame grabs, Dual Pixel CMOS Autofocus, and more!