Is the om system m zuiko 12 40mm f 2 8 pro ii good for astrophotography?

The site doesn't say how this lens performs for astrophotography, so I can't give you a verdict. Here's what the page does tell you. It's an f/2.8 zoom for Micro Four Thirds, and it isn't stabilised, which matters when you're shooting long exposures of the night sky. On Micro Four Thirds, f/2.8 gives about the depth of field of f/5.6, so you'll want to think about how sharp stars will be across the frame.

If you're set on astro, check the OM System OM-3 Astro page, since the lens fits that body. The focal length converter explains how the 12-40mm range frames on Micro Four Thirds, which helps you judge how much sky you'll capture.

Written by Claude from this site's pages.