Certain Sigma lenses may cause error messages to the current Canon EOS DSLR. The reason is the lack of support for the camera lens correction. Sigma recommends disabling the feature.
As lens manufacturer Sigma reports on its US website, some Sigma lenses on Canon’s EOS models 6D Mark II, 77D, 800D and 750D can lead to compatibility problems with the camera-specific correction of lens aberrations. Sigma recommends that you disable the corresponding function in the camera menu.
According to Sigma, the compatibility problems are the following:
- Sigma 30mm F1.4 DC HSM Art
- Sigma 35mm F1.4 DG HSM Art
- Sigma 30mm F1.4 EX DC HSM
- Sigma 50mm F1.4 EX DG HSM
- Sigma 85mm F1.4 EX DG HSM
Users report system crashes
If lens aberration correction is activated in the camera menu, the camera may experience a camera error in the live view mode. Under the menu item, functions such as vignetting, color error, distortion, and deflection correction can be selected or deselected separately. The correction functions of the camera would not be supported by these lenses.
In a forum thread, different users report the problem. The camera signals “Error Message 70” in the display and reacts only after switching off and then on again.
Whether and how the error can be corrected is unclear. Possibly Sigma improves by firmware update after – because of lack of update possibility the older EX lenses remained however forcibly outside. A firmware update from Canon, which provides better support for foreign manufacturer lenses, seems unlikely.