I picked this up secondhand about 10 months ago and would highly recommend it to anyone with a Canon DSLR. Has to be the ultimate affordable (just about) walkaround lens for the birder.
Canon's 2 other options in the same price range are no doubt excellent but for me although the 400L may be slightly sharper (according to stuff I've read on various forums) it has no IS (a dealbreaker for myself, don't know about others) and the 300L + 1.4 T/C doesn't have the flexibility of the 100-400L's zoom.
I've taken 000's of pictures on my 400D with this lens and am looking forward to taking 000's more with it when I get my 50D next year. Unless Canon bring out some new IS lens under $2000 I'll stick with it for a while yet. The immediate next steps up from this (the Sigma 500 F4.5 or the Canon 300 F2.8) are well out of my price range.
Canon's 2 other options in the same price range are no doubt excellent but for me although the 400L may be slightly sharper (according to stuff I've read on various forums) it has no IS (a dealbreaker for myself, don't know about others) and the 300L + 1.4 T/C doesn't have the flexibility of the 100-400L's zoom.
I've taken 000's of pictures on my 400D with this lens and am looking forward to taking 000's more with it when I get my 50D next year. Unless Canon bring out some new IS lens under $2000 I'll stick with it for a while yet. The immediate next steps up from this (the Sigma 500 F4.5 or the Canon 300 F2.8) are well out of my price range.