Is the olympus m zuiko 8mm f 1 8 fisheye pro sharp wide open?

I haven't tested this lens for sharpness, and the site doesn't have a review that measures how it performs wide open at f/1.8, so I can't tell you whether it's sharp there.

What I can tell you is the basics. It's a weather-sealed 8mm f/1.8 fisheye for Micro Four Thirds, with autofocus but no stabilisation. On Micro Four Thirds it frames like a 16mm on full frame, and f/1.8 gives about the depth of field of f/3.6 there. For a general explanation of what the f-number means in practice, see Lenses. For a fisheye, most people shoot it stopped down a little, so check a dedicated review before buying if edge-to-edge sharpness at f/1.8 matters to you.

Written by Claude from this site's pages.