[Dan K] had just such a lens from Sigma, but wanted to get it working fully with a camera using the Canon EF lens fitting. Hacking ensued. The lens in question was a Sigma 15-30mm f/3.5-4.5 EX DG ...

the Sigma 16-300mm is an APS-C lens available for L-Mount, Sony E, Fujifilm X and, as an EOS R-series user, I was delighted that it's also available for Canon RF. I tried out the RF mount version ...

If macro is your thing, start with the Sigma 70mm F2.8 DG Macro Art. Or for a kit-lens upgrade for APS-C bodies, go with the Tamron 18-200mm F/3.5-6.3 Di II VC. If you are using a Canon full-frame ...

With 35mm kit, any focal length below 20mm was considered an ultra-wide angle lens, but the same length ... black that we've praised before. Canon and Sigma mounts sport the usual AF/MF switch ...

This lens is one of two virtually identical offerings from Sigma in the extremely popular ... Both at f/8 in aperture priority on a Canon 300D. Used in Macro mode, this lens shines as this shot ...