Quote Originally Posted by darinwc View Post
nonsense! there are quite a few 24mm lenses sold on ebay for under $100. That includes nikkors, canon fds, and minoltas. Olympus and Pentax tend to go for a bit more. Alternative manfacturers are seen for under $50 sometimes.
The often-rebranded Cosina and Tokina 24s are often available cheaply in some mounts. Minoltas sometimes, because not many people are using the MD lenses anymore. Pentax, not so much. This is a good example to illustrate the trade-offs of vintage systems; some, like the M42 and K-mount, have oodles of lenses available, which drives prices down in some cases but not across the board because these are also still easily usable on digital cameras. Depends on particular lenses, and there's not always a correlation to quality (just what's either a well-known "classic" or a current fad).