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Three Sigma Lenses Have Exposure Issues with Canon EOS 1D-X Mark II

Sigma officially issued an advisory saying that three Sigma lenses (20mm f/1.4 DG HSM Art, 35mm f/1.4 DG HSM Art and 85mm f/1.4 EX DG HSM) are not fully compatible with the new Canon EOS 1D-X Mark II camera. When these lenses are attached to Canon EOS 1D-X Mark II camera, exposure of the image may not be accurate. Sigma is currently working on the firmware update for respective lenses to fix the exposure issues, and the release dates will be announced later.

In addition, some users said that some Tamron lenses are not fully compatible with Canon EOS 1D-X Mark II. So, I hope Sigma and Tamron will release a new firmware update for the certain lenses.

Press Release (via Sigma)

CANON EOS-1D X MARK II USERS

Thank you for purchasing and using our products.

We have found that some SIGMA interchangeable lenses for CANON are not fully compatible with
CANON EOS-1DX Mark II, which was released on April 28th.
When certain lenses are attached to this camera, exposure of the image may not be accurate.
We are sorry for the inconvenience, and we will make a further announcement on our website
when specific details are finalized.
In addition, please also refer to the below usage notice related to this announcement.

[Phenomenon]
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.

[Products concerned]
SIGMA 20mm F1.4 DG HSM | Art
SIGMA 35mm F1.4 DG HSM | Art
SIGMA 85mm F1.4 EX DG HSM

We are currently working on the firmware update for respective lenses, and the release dates will be announced later.

Usage Notice for customers who are using EOS mount SIGMA lenses on a CANON EOS-1DX Mark II
- MO (Manual Override) function is unavailable with this camera (Full-time Manual function can be offered).
- When using a SIGMA interchangeable lens for EOS, setting the corrections to [Disable] is recommended,
as “Lens Correction” functions of the camera, such as Peripheral illumination correction, Chromatic aberration correction,
Diffraction correction and Distortion correction, are not supported. If those functions are activated,
the performance of lenses may not be accurate. This is not only for EOS-1DX Mark II, but also other camera bodies.

We appreciate your continued support for our company and products.

Related posts:

  1. Up to $390 off on Sigma Lenses for Canon
  2. Canon EOS 5D Mark III $1899, Big Savings on Sigma and Tamron Lenses
  3. Sigma 24-70mm f/2.8 and 70-200mm f/2.8 OS Art Lenses NOT Coming Soon
  4. New Firmware Updates for Sigma 150-600mm f/5-6.3 DG OS HSM S & C Lenses
  5. Two New Sigma Lenses Will Be Announced on February 23, 2016

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