My personal recommendation for m4 / 3

This is my first review, but the lens is so great, I did not want to share with you.
Had the first Pancake 20 1.7, which is also very sharp, but not compared to the 25 1.4er represents: The contrasts were always too hard, too extreme. This works well for 'artistic', perspective detail and structure recordings, but for personal and landscapes me was this easy to look unnatural.

Compared to the excellent 45 1.8 of Olympus, I must say that this course the people more natural and maps with more potential exemption, but this is ultimately yes also due to the larger focal length in pure Porträitaufnahmen.

The autofocus on the E-P3 is very fast, maybe a little bit slower than the 14-42 kit lens. In reality absolutely fast enough.

The zoom ring turns very smoothly; total an absolute top glass.