Recent content by PhrozeN_FisH

Mine didn't even try to focus initially, as if it were on manual focus. After checking the camera it didn't have the lens peripheral illumination correction info installed for the 100-400. Installed it via EOS Utility and haven't had it occur since. Not sure if it was the culprit or not, but you...

I have never used the 400L, but it is supposed to be sharper than the 100-400; however, you will be limited with a fixed focal length. Personally, I prefer the versatility of my 100-400.