canonman77
Well-known member
Hi guys, I need some advice. I am thinking about buying the CANON 400mm f5.6 for birding. I already own the 100-400mm & the Sigma 150-500mm both with their own IS, OS, but I have seen some cracking BIF shots & the fact that the 400mm f5.6 Is sharper. I was going to swap my 100-400mm for the 400mm but have decided to keep my 100-400mm & use both. Whats the 400mm f5.6 like for handheld BIF shots & whats It like without the IS. I have heard that Its not really needed as the AF Is fast enough. I would really appreciate your advice & would I be wasting money, because I have the 100-400mm with IS....
Thanks.
Sean....
Thanks.
Sean....