I have a Canon 7 plus a couple of Feds. The question is about the canon really. I would like a lens wider than a 50mm but prices are pretty crazy. Even the Jupiter 12 is fetching silly money. Is there, or are there any inexpensive, hidden gems that I can keep an eye open for? I already have a Jupiter 8, Fed, and industar 26 (all 50mm) and a Canon 135mm