Sigma confirms bizarre glitch when pairing lenses with Canon 1D-X Mark II

By Anthony Thurston Updated November 5, 2017

canon 1dx2 sigma 35mmart 1dx mark ii — Image used with permission by copyright holder

Some Sigma lenses aren’t compatible with Canon’s latest flagship DSLR, the EOS-1D X Mark II. The concern was originally reported by SLR Lounge and corroborated by Resource Magazine, which found that when pairing the EOS-1D X Mark II with the Sigma 35mm F1.4 DG HSM Art lens, the preview image displays an odd visual effect or overlay.

The issue also affects the 85mm F1.4 EX DG HSM and 20mm F1.4 DG HST Art lenses, according to Sigma.

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“When the lenses listed below are used and either ‘Evaluative Metering’ or ‘Center-weighted Average Metering’ is selected in Metering Mode of the camera, the image could show some underexposure,” the company said in an official response to customers.

The good news is that there is an easy workaround to resolve the issue. If you disable the camera’s Peripheral Illumination Correction, the issue goes away. Sigma told Digital Trends that this workaround is effective, but it is working on an official fix, via a firmware update to be announced later.

This image demonstrates the weird issue displayed when pairing the 1D X Mark II with Sigma's 35mm ART. — This image demonstrates the weird issue displayed when pairing the 1D X Mark II with Sigma’s 35mm ART. Pye Jirsa/ SLR Lounge

This is always a risk you take when you decide to invest in third-party hardware, even the best lenses, and it’s not the first time that issues have come up between a new camera body and what should be compatible third-party lenses. The nice thing about modern equipment is that the camera and affected lenses are firmware upgradeable.

Canon’s Peripheral Illumination Correction has a history of not playing nice with third-party lenses, however. Some users have reported an issue similar to this when pairing the Sigma 35mm on Canon’s EOS 5D Mark III (although that doesn’t appear to be a widespread issue). This problem is thought to have something to do with the camera not having a profile for the third-party lens.

We’ve reached out to Canon for comment on this issue, but the company hasn’t made a statement.

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Anthony Thurston

Former Digital Trends Contributor

Anthony is an internationally published photographer based in the beautiful Pacific Northwest. Specializing primarily in…

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