I know some people are using these "Series 1" Vivitar 70-210mm lenses because I saw some photos in the sample archives. Some are a constant f3.5 and some are f2.8-4. I prefer the 2.8-4 version because it's smaller and cheaper. Anyway, these lenses are supposed to be fairly decent and I think it would be a cheap way for me to have a super tele zoom for under $100. I can get in a couple different mounts too so it'd be pretty easy to find. Anyway, just wondering if anyone has it and how it is. I know it'd be huge on the camera but I wouldn't mind giving it a try.