After I had 14mm / 2.5 pitch with a copy of Panasonic, I have found me again and am happy now. Obviously, there are also in this lens manufacturing differences, because my first exhibited significant CAs, also it was the right aspect from extremely blurred. This is now virtually free of CAs, in the middle nice and sharp way with a slight drop in sharpness towards the edge. But compared to the 20mm / 1.7, it falls in the overall imaging performance somewhat, but is very useful if only because the small dimensions and the larger focal range. Sufficiently sharp, it is starting from Aperture 2.5 and increases a little when stopping down. The year-on kit Standart Zoom better initial aperture makes itself noticeable insofar as that you can halve the isovalues to still obtain usable exposures. This lens now makes the pen even more compact than it already is. It is now also my fastest lens on my E-P2, significantly faster than the kit zoom and also faster than 14mm / .1.7 Panasonic. Prices for the Panasonic Pancakes are steep and it is worthwhile to rummage a bit in dealers' Inet. I have paid for my 14er 229Euro, the dealer has "entbundelt", so it comes from the Panasonic kit.
