Thanks Armando.
Ah, and you like the Sigma.? I have been looking for that one, attractive specs ; the 15cm close focus. Not many to find second hand, so I presume they are very good
yes it is ok, far corners never get sharp enough, maybe at f16, but most of it is sharp from f4 and on. Filter film can be installed in the back of the lens, but I never tried it
Since I got the 20mm f1.8 the fisheye gets very little use, I'm thinking about selling it, to bad we are so far