I recently purchased lens hoods from Fotodiox for my two lenses, the cheap "L" kit lens which came with the E-PL1 and the 17mm. The problem was that the hoods were fine down to 17mm, so the prime had a hood but the zoom was only usable down to about 16mm after which it vignetted very badly. Yesterday I put the hood on a stationary belt sander and began. After a few attempts I finally got it down to the point where it did not vignette so now I have a "custom" lens hood for my 14-42mm. Below are pictures showing the two hoods so that you can see how much has been shaved from the hood to work on the zoom. There is still some mild vignetting but only at extremely close focus, so moving back and zooming slightly fixes it. Hope this is of some use. BTW that is the full sized hood on the E-PL1.