What Sigma lenses are compatible with the Canon 1D X Mark II?

Q. What Sigma lenses are compatible with the Canon 1D X Mark II?
A. The following Sigma lenses have been found to have compatibility issues when used with the  Canon 1D X Mark II.
This includes;
  • Sigma 20mm f/1.4 Art
  • Sigma 35mm f/1.4 Art
  • Sigma 85mm f/1.4

“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,” Sigma writes. “When certain lenses [those listed above] are attached to this camera, exposure of the image may not be accurate.”

Sigma says they’re currently working on a firmware update for the affected lenses