12mm1010198 by Jim Argyle, on Flickr Oh yah thats wide. Computar 12mm f1.3 shot wide open to show off our mess after a candy making experiment gone awry. I shot 16:9 and cropped to 4:3 as well. Anybody else using this thing? It was a huge pain to grind it down enough to achieve a usable focus but I think it works pretty well.