Hi folks. I am a long-time Olympus 4/3 user (E-520) and recently bought an E-M10 (that recent sale was too good to pass up!). So I am looking at lenses for the new camera (I have a fair number of 4/3 lenses which I can use too). I just ordered a Rokinon (Samyang, Bower, etc) 7.5mm fisheye (m4/3 version). I already have a 8mm version which I use on a Canon and like pretty well. Of course, they appear to be fairly different, if not in specs, then certainly in appearance and size. I see that the minimum focus distance on the 4/3 version (3.5 inches) is much less than the DSLR version (12 inches). The lenses get different test results too, from my web searching. The m4/3 version seems to be even better than the DSLR version, which is no slouch. I am wondering if anyone has any experience using both and what if any difference they have found. On a related front, even before I ordered the new fisheye, I have been looking for good defishing software. My regular image editor, PaintShop Pro, has a built-in function which is so-so. I spent $25 for the PTLens plugin, but am not wild about it either - it doesn't seem to have many options or adjustments. I just tried using Hugin, which is normally a stitching program but can also do defishing on one image. I couldn't make much sense out of it so I watched a YouTube video on using it for defishing and MEGO (My Eyes Glaze Over) set in very quickly. Yikes! So it seems we have minimal control with PSP and PTLens, but mind-boggling control with Hugin. Although I don't know how good a job Hugin does, it better do a REALLY fine job after all that effort you have to make! I looked at the Fisheye-Hemi software too but after reading some posts on some forums, including this, I found Anglerfish: http://www.anglerfish.ajotte.com/index.php a standalone program which is $20 to buy. VERY nice! It has a lot of options and seems to do a much better job removing the fisheye distortion without distorting the rest of the image too badly, especially the edges. I figured I'd praise it here because I don't see it mentioned very often and think it works very nicely.