Well I just won an ebay auction last night for a Rodenstock 75mm f/4.5 Rogonar-S. It's a 4-element design. As I mentioned earlier I'm planning to print 16x20 from 6x4.5 and 6x6 negatives with it. It was such a bargain that I couldn't resist. Now I'm reading reviews on this lens and I'm reading that it is a great lens, but not for great enlargement, as the corners lose sharpness. Would 16x20 constitute as great enlargement? Like I said, it was such a deal that if it doesn't work well for it I'll just get rid of it. I'll still keep my eyes open for a Componon-S 80/4.
Sometimes it pays to just stay off the internet. Haha.