Originally posted by ChristianRock Sorry to hear you're going from the Pentax fold (mostly)... I find it hard to believe that a zoom will render as well as the "magic lens" (as Mike Johnston calls it). Hopefully the cropped version of it on the Olympus will still yield good results. But the important thing is to keep shooting...
I've left and come back (or usually just partially left) many times- trying out different systems and lenses is something I enjoy, and usually manage to trade sideways by buying and selling used without having to spend much money (this is the second K-5 I've owned). For a while I was even using an M 50mm f4 macro with an adapter on a Nikon V1 (also tried it on Pentax Q but the crop was just too much). I think the 35 Ltd will do very nicely on m4/3, and so will the M 50mm f1.7 I've had since at least 2008. Ironically, I've always used the M 50 with an old rubber Olympus OM 85mm f2 lens hood (also a nice fit on the F 35-70) left over from my film days- in which I had a Pentax K1000 and Olympus OM-2. So, really this is the continuation of a long dual love I've had for both Pentax and Olympus OM cameras.
No doubt there'll be some nice results from the 35 Ltd on m4/3 to share in this thread. I certainly don't expect the 12-45mm zoom to render as beautifully as the 35, but I do expect it to be a very practical lens for my needs. I put in a lot of mileage on foot, so the small size is important, and have increasingly been shooting video for projects at work. And optically it does seem a lot better than standard zooms available for Pentax and other APS-C systems- I think this is the kind of thing where the smaller 4/3 format really has its strengths.