Upload & Sell: Off
Atran; you should honestly consider the A12/28mm module over the ZM18/4 if you choose the GXR. The A12/28 is an 18.3mm lens - a very good one too - and comes cheaper, is a lot smaller. It is faster with f2.5 and has AF too. Also it will focus closer. It does of course not do manual focus as nice, but it works ok. I almost never use MF with it anyway as AF is accurate.
Michael: Since I have both, I enjoy both.
The A12/28 suits people and indoor/street photography much better. The ZM18/4 is a little bit sharper and suits cityscape/landscape and "controlled" indoor shooting.
Also, I kept the GXR - which I was going to phase out in favor of the NEX7 - for work site photography.
But a couple of things happened: the NEX7 does not seem to work well with M / alt wide angles which is a must for me. The NEX5N is too flimsy for me, though it does really well I can't have it as my main camera. The touch/turn wheel is not my cup of tea. Touch screen is nice though.
It will be a great addition until Sony (or someone else) gets it right. The Ricoh A12/28 - which I had more or less written off as merely a decent lensor - has turned out to be a great little package in its own right - which yet again turns the scale towards the GXR. Also, if Ricoh will make good on a rumor that an APS-C 24-85mm f2.8 will be released next year I will definitely be interested in it.
12MP is enough, given what kind of camera it is. I would have loved a few more, or the NEX5N sensor but honestly, 12MP works for most applications. And the difference in resolution is very slight as I see it. Also, I find that if I lack or miss anything it would be a full frame sensor camera for more demanding tasks - and there are solutions already in that category. Seeing what the ZM18 can do with the M9 makes me keep an eye on the M9 prices and the full frame market.
Still, whatever happens I feel I can return to the GXR and keep it as camera that definitely still grows on me.
Will post some pictures of the GXR with the A12/28 mounted and the ZM18/4 mounted tonight, after work. Gotta go now!