So I'm taking this photo class, and the instructor is a pretty decent guy and a good photographer. I was talking to him about equipment the other day, and he said - and apparently a lot of people agree with him - that if you're using a camera with under 12 MP and a less than full-size sensor, there's no reason to get top-end lenses.
In fact, he said virtually no one would be able to tell the difference between a picture taken with a L series or a plain old EF. I have tried to look into this elsewhere and can't find much.
My questions is, as I try to build a decent collection of lenses for my 20D, for amateur/advanced amateur applications, is a top-end lens overkill?
Your opinions would be greatly appreciated.