Is the viltrox af 56mm f 1 7 air sharp wide open?

This site doesn't cover how sharp the Viltrox AF 56mm f/1.7 Air is at f/1.7, so I can't give you a verdict on that. What I can tell you is that it's an autofocus prime for APS-C, with no stabilisation, and it fits Sony E, Fujifilm X and Nikon Z mounts. On APS-C it frames roughly like 84mm on full frame.

If you're wondering how f/1.7 looks for portraits, the portraits guide explains how a wide aperture gives sharp eyes and a soft background. It also points out that eye autofocus does a lot of the work when you shoot wide open.

To check sharpness for yourself, shoot the same subject at f/1.7 and again at f/2.8, then compare the eyes at 100% on your screen.

Written by Claude from this site's pages.