You asked

What is the canon rf 75 300mm f 4 5 6 good for?

The Canon RF 75-300mm f/4-5.6 is a cheap, light telephoto zoom, and I'd buy it for reach on a budget. On full frame it covers 75-300mm. On APS-C it frames like 120-480mm, which suits wildlife, sport and anything you can't get close to, as long as the light is good.

Be realistic about its limits. It has no optical stabilisation, and it gets darker as you zoom in, so it's a daylight lens rather than one for dim rooms or night. If you want tight headshots with soft backgrounds, the Portraits page explains why a longer, brighter lens does that job better.

It fits a wide range of Canon RF bodies, including the APS-C Canon EOS R7 if you want the extra reach.

Written by Claude from this site's pages.

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