Ttartisan 500mm f 6 3 vs nikon af s 500mm f 5 6e pf ed vr?

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From Nikon AF-S 500mm f/5.6E PF ED VR: Nikon AF-S 500mm f/5.6E PF ED VR: A prime lens by Nikon for Full frame cameras, 500mm f/5.6. A hand-holdable 500mm prime for wildlife. Specs - Maker: Nikon - Focal length: 500mm (prime) - Maximum aperture: f/5.6 - Made for: Full frame sensors - Mounts: Nikon F - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Nikon F): as marked, 500mm. - On APS-C (Nikon F): like 750mm on full frame; f/5.6 ...

From TTArtisan 500mm f/6.3: TTArtisan 500mm f/6.3: A prime lens by TTArtisan for Full frame cameras, 500mm f/6.3. Specs - Maker: TTArtisan - Focal length: 500mm (prime) - Maximum aperture: f/6.3 - Made for: Full frame sensors - Mounts: Sony E, Fujifilm X, Nikon Z, Canon RF, L-Mount, Canon EF, Nikon F - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E, Nikon Z, Canon RF, L-Mount, Canon EF, ...

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