Choosing lenses
Key factors to watch out for
The main factors to consider inits focal length, maximum aperture, and if it’s full-frame compatible or not. We’ve categorized lenses by focal length range from wide-angle to telephoto. The larger a lens’s maximum aperture, the ‘faster’ it is. Zooms are more flexible than primes, but tend not to have such fast maximum apertures. Full-frame lenses will also work with ‘crop-sensor’ EOS DSLRs, but crop-sensor lenses aren’t compatible with full-frame cameras. For Canon EOS R mirrorless cameras the dedicated Canon RF lenses are best, but using Canon’s Mount Adapter EF-EOS R enables EF-S and EF lenses to be used on EOS R cameras.
