PTLens is free. It has a Zenitar 16mm lens profile. There are versions for other operating systems. http://epaperpress.com/ptlens/index.html
PTLens is a front end for Panorama Tools, also free. The actions could be made to run using just Panorama Tools but they run smoother with PTlens. I may modify them for Panorama Tools so they would be Mac compatible. The only problem with the PTLens correction is that it chops a fair chunk off of the sides of the image. The whole point of this lens is to get wide and PTLens correction makes it narrower. Examples: http://members.shaw.ca/hargravep/Image8.htm Powell >VS> I also have a Zenitar, and did some experiments with wideangle filter in >VS> Gimp. Results were not perfect, but not so bad even..... > >Try the PTLens. Newest version has customisable defishing function (as >well as chromatic aberration control), and it also has a profile >exactly for the Zenitar on 1.5x crop cameras. Works quite well from >when I tried it on some sample fisheye photos. >Good light! > fra >
