Hacking ensued. The lens in question was a Sigma 15-30mm f/3.5-4.5 EX DG, built to work with a Sigma camera using the SA mount. As it turns out, the SA mount is actually based on the Canon EF ...

Strangely enough, this SLR has a huge array of lenses available for it. If they can make lenses that fit Canon, Nikon and Minolta why not make them to fit their own camera too? Like the lens range ...

Sigma has just announced the pricing and release dates for four new prime lenses for Canon’s EOS R mirrorless cameras. The 16mm, 23mm, 30mm, and 56 mm F1.4 DC DN Contemporary lenses were announced ...

For example, Amazon is offering 14% off on this Sony E-mount Sigma 14mm f/1.4 lens. While none of the lenses we've selected are exclusively for astrophotography, they're all specialist ...

Both lenses cover the APS-C sensor size only. In full-frame terms, the Sigma's focal range is equivalent to 15-27mm. Sigma utilizes its typical composite material for the barrel, a tough plastic ...