Ttartisan 7 5mm f 2 fisheye vs 7artisans 6mm f 2?

Both are manual-focus, unstabilised f/2 primes for APS-C, so the choice comes down to field of view and mount.

The TTArtisan 7.5mm f/2 Fisheye frames like 11mm on full frame on Sony E, Fujifilm X, Nikon Z and L-Mount bodies, and it's the one with a fisheye look. It also lists L-Mount, which the 6mm doesn't.

The 7Artisans 6mm f/2 frames wider, like 9mm on full frame on those same APS-C systems, and it isn't described as a fisheye. If you want the widest straight-ish view, that's the one. If you want the fisheye distortion, pick the TTArtisan.

Written by Claude from this site's pages.