7artisans af 18mm f 2 vs ttartisan af 17mm f 1 8 air?

Both are small, autofocus, unstabilised primes for APS-C, and they're close in view. The TTArtisan 17mm f/1.8 Air frames like about 26mm on full frame, and its f/1.8 gives roughly the background blur of f/2.7. The 7Artisans AF 18mm f/2 frames like about 27mm, with f/2 matching about f/3.

My pick is the TTArtisan AF 17mm f/1.8 Air. It's a stop faster, which matters for indoor shots and blurring backgrounds. It also fits Sony E, Fujifilm X and Nikon Z, while the 7Artisans only fits Sony E. The 7Artisans is only worth considering if you're on Sony E and want the slightly tighter view.

If you're not sure how much blur a given aperture gives you, the focal length converter explains the crop-factor maths.

Written by Claude from this site's pages.