I have gone through more lenses than I care to count, and most of them I don't even remember owning any more. But, there are times when I look back at some of the pictures taken with certain lenses, and I wished I didn't get rid of them. Case in point: Contax mount Carl Zeiss 35-70mm f3.4. I didn't own this lens for long, and that was the problem -- didn't get to know the lens more before letting it go. This particular lens has a "macro" feature that is very handy to have
Disc Brake -- Canon 20D & Carl Zeiss Vario-Sonnar 35-70mm f3.4
I bought this lens along with the Zeiss S-Planar 60mm f2.8 Makro. I have kept the S-Planar, but not the Vario-Sonnar 35-70mm. It's clear that was a mistake. It was one of the few zoom lenses that were very sharp, but I think it was just too difficult to focus on the 20D. I have learned my lesson and now take my time to use the lens before deciding to sell it or not, especially the better lenses.
