Who is disappointed with the Oly 45mm lens?

mine was sharp, rapid focusing with good contrast and detail.

I made the mistake of trading it in for a used panny 45 f2.8 macro which I have now replaced with the olympus 60mm f2.6 macro.

I'm now saving up to buy another copy of the 45 f1.8 (that's how much I miss it   )

Sounds like you have a poor copy, as the others have said

(all this using an EM-5)