Sigma issued an update on using Pentax mount Sigma lenses on the new Pentax K-1 Mark II DSLR camera (the issue was already previously reported for the K-1): Use of Pentax mount SIGMA interchangeable lenses when attached to the “Pentax K-1 Mark II” Thank you for purchasing and using our products. We have found that … Continue reading Using Pentax mount Sigma lenses on the Pentax K-1 Mark II camera