Sigma Advisory: Some Pentax Mount SIGMA Interchangeable Lenses When Attached to Pentax K-1 Camera Can Scratch the Upper Part of the Mount 2016-05-31
Sigma Advisory Update: Canon Mount Lens Users of Canon “EOS 5Ds” and “EOS 5DsR”, “EOS 8000D (Rebel T6s / 760D)” and “EOS Kiss X8i (Rebel T6i / 750D)” Cameras 2015-07-06
Sigma Advisory: Canon Mount Lens Users of Canon Rebel T6s / 760D (EOS 8000D) and Rebel T6i / 750D (EOS Kiss X8i) Cameras 2015-05-03