Is the 7artisans af 50mm f 1 8 sharp wide open?

I don't have test results on how sharp the 7Artisans AF 50mm f/1.8 is at f/1.8, so I can't give you a straight answer on that. The lens page covers its specs: full frame, autofocus, no stabilisation, and mounts for Sony E, Nikon Z and L-Mount. Check it out at 7Artisans AF 50mm f/1.8. There's also a separate 7Artisans AF 50mm f/1.8 APS-C page if you shoot an APS-C body.

On the aperture side, f/1.8 gives a thin plane of focus, so for portraits of more than one person, stopping down to f/2.8 is usually the safer call. The portraits guide explains why, and the lenses guide covers what f-numbers mean in general.

Written by Claude from this site's pages.