
Originally Posted by
DanK
If you are sure you are going to use a crop sensor camera like the 7D, and you think you may want to do macro, perhaps it is worth considering the EF-S 60mm macro instead of the 50 f/2.5. I had a 50 f/2.5 but sold it fairly quickly to trade up the 60 once I got hooked on macro. The 60 is a true 1:1 macro, while the 50 is 1:2. The 60 has USM focusing and full time manual focusing, neither of which the 50 has, if I remember right. And it is a truly wonderful lens. On the other hand, it costs more, and it is not usable on a 'full frame' camera.