You asked

Best telephoto lens for micro four thirds?

For Micro Four Thirds, the telephoto pick I can point you to is the Panasonic Leica DG 200mm f/2.8. It's a prime that works out to a 400mm-equivalent f/2.8 on full frame, which is a serious reach for wildlife or sport. Because the Micro Four Thirds mount is shared, it fits any body in that system.

Telephotos are where Micro Four Thirds shines, since the lenses stay small for their reach. The lenses guide puts 200mm and beyond in the telephoto range for wildlife, sport and distant landscapes.

I don't have other Micro Four Thirds telephotos to compare against here, so the gear catalogue is the place to browse the rest of the mount's lenses.

Written by Claude from this site's pages.

From these pages