Canon RF 16-28mm f2.8 IS STM review

The Canon RF 16-28mm f2.8 IS STM is a fast ultra-wide zoom for their full-frame EOS R mirrorless cameras; note it is not compatible with EOS M or Canon’s DSLRs. Announced in January 2025, it’s actually Canon’s fifth ultra-wide zoom in the native RF mount that’s designed for full-frame bodies. It seamlessly pairs with the earlier 28-70 2.8, and like that model goes for a slightly shorter than traditional range to achieve a lower weight and price point than a typical 16-35 2.8.