Is the om system m zuiko 20mm f 1 4 pro sharp wide open?

I don't have test data on how sharp the OM System M.Zuiko 20mm f/1.4 PRO is at f/1.4, so I can't give you a verdict on that. What I can tell you is that it's a 20mm prime for Micro Four Thirds, and at f/1.4 it gives about the depth of field of f/2.8 there. You can see the full spec sheet and the list of compatible bodies on its lens page.

If you're mainly worried about thin focus at f/1.4, the aperture guide explains what the f-number does, and the portrait notes cover when a wide aperture starts to make focus too thin.

Written by Claude from this site's pages.