Sigma 150/2,8 w MMF-3 on E-M5: having trouble

Because it does focus...

Try to clean the contacts with something... if there is some kind of missconnection between the lens / adapter/ body , that can lead into this kind of behavior (or should we say missbehavior).

I don't have that 150mm lens, but sometimes my 12-60mm lens did same kind of things with ep3. Cleaning the contacts helped. Focusing is now slowish, but mostly accurate.

Good luck to you!

Jouko
'The best camera in the world is the one you have with you when you need it'
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