You asked

Is the canon rf 7 14mm f 2 8 3 5l fisheye stm good on aps c?

Yes, it works on APS-C, but you get a narrower view than the name suggests. On a Canon APS-C body it frames like an 11-22mm lens, so you lose the full 190-degree fisheye circle. The f/2.8-3.5 aperture also gives roughly the depth of field of f/4.5-5.6 there. If you want to know how crop sensors change blur, the focal length converter explains it.

It fits these APS-C Canon RF bodies: the Canon EOS R7, the Canon EOS R10, and the Canon EOS R50. The lens is not stabilised, so keep your shutter speed up. For more on wide-angle work, see landscape.

Written by Claude from this site's pages.

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