Canon rf 15 35mm f 2 8l is usm vs canon rf 14 35mm f 4l is usm?

Both are full-frame RF zooms with image stabilisation and autofocus, so the choice comes down to two differences: the 14mm wide end and the aperture.

The Canon RF 15-35mm f/2.8L IS USM is the one I'd pick for low light, indoor work, or anywhere you want a brighter viewfinder and more background separation. The Canon RF 14-35mm f/4L IS USM gives you that extra millimetre of width at the short end, which matters for big landscapes and interiors. If you shoot landscapes in good light, that's the one I'd lean toward.

Both fit the full-frame bodies, such as the Canon EOS R6 Mark II, and APS-C bodies too. If you're not sure how the focal lengths will feel on your sensor, check sensor sizes.

Written by Claude from this site's pages.