My question is as follows: In 2006 I bought a Canon EOS350D with a Tamron 18-200, which was a great choice for shooting pictures on vacations, not having to carry around much, etc. Now, this seems ...
What's better image quality; full frame with Canon 400mm 5.6L plus 1.4 extender, OR, cropped frame with same lens?
I am about to upgrade to a Canon 7D for my birding using my 400mm 5.6L lens. With the 1.6 crop factor sensor that gives (roughly) a magnification factor equivalent to my other option, a Canon 5D mkII ...