I have the 14-42mm kit lens that came with my E-510. It is front focusing when coupled with the E-510 and it is too expensive to try and get them calibrated again. It is in otherwise great condition and, while I have never tested it on a m4/3 body, it should focus accurately and reasonably quickly with CDAF. Alternatively, if you have an E-620, E-30 or one of the E-300 cameras, it might support manual focus adjustment, possibly allowing you to calibrate it on-camera. Obviously, double check to make sure your camera has this feature, and I can't guarantee that it will actually work. I'm probably going to sell the E-510 as well, but I'm not sure it would be worthwhile/ethical to sell it as a kit with a lens that doesn't focus properly on it. I'll consider any reasonable offer. I thought I would post here to see if anyone has a use for it before putting it on ebay.