This is my first lens with fixed focal length. I use it at present on the Panasonic GH2. Bin excited after the first day! Lichtstark: Aperture 1.8 allows fine exemption possibilities (in fine Bokeh!) In bad light the ISO-screw must be turned not as high. However, I have the min. Felt shutter speed of 1/4000 at the GH2 for the first time as restrictive (in sunshine)! That's what happens, so that you use a fast lens ;-) Sharp: Sharp already at full aperture. Absolutely comparable to the Olympus ZD 12-60. Compact: Looks tiny on the GH2 (the indeed is quite compact). Quick AF: I'm satisfied with the AF performance on the GH2 - is probably even faster on a Olympus Body.
Zooming with feet and legs I have to keep practicing - with this objective but makes it a lot of fun!
Unfortunately missing a lens hood and a pouch included. However, since the objective, considering the quality that it offers, is very inexpensive, that does not change my 5 star rating.
This lens demonstrates the strengths of the Micro Four Thirds system in a very impressive way!