I was planning to prepare better pictures but it seems that here the rain will never stop. I got this lens from internet sale of course. Supposedly in good condition but it had it all: fungus,dirt,scratches.. I removed the fungus but the lens remained quite dirty and and of course still scratched and damaged. It is not difficult to disassemble this lens, especially if you watch this wonderful video, but cleaning the glass that is still a mystery to me. ""https://www.youtube.com/watch?v=-rlDO5Qj6cU"" I wondered whether it was wise to post pictures from bad lens, but it could be interesting for some future discussion about how defects affect the image quality. Anyway here are a few pictures: red watch at 1.4, red watch at 2.8, yellow flower at noon on a sunny day at 1.4, unknown flower at 2.0 or 2.8 (not sure anymore) and bright side of the moon handheld 1/50s ISO 12800. The moon pic is bit ugly but few years ago it would be impossible to take it with "normal" cameras, the idea is to show how much light this lens can collect. Camera is C3.