I took some bird pictures yesterday in rather poor light with the 400 f/5.6L and had some ok pictures but also many many that were soft or oof.
I was shooting with a mix of One Shot and AI Servo, depending if the birds were moving or not.
I shot this at 1/640, ISO 800 f/5.6 on Av mode. I am very disappointed because it would have been a great picture but nothing seems to be in focus! This happened for the sequence of shots I did (1.5fps RAW) in total 3 shots for the flyby:
[IMAGE'S LINK: http://s468.photobucket.com ...ird2_zps9d527b46.jpg.html]
[IMAGE'S LINK: http://s468.photobucket.com ...ird3_zpsfd9aef36.jpg.html]
And a zoomed in look on LR4:
[IMAGE'S LINK: http://s468.photobucket.com ...reen_zps57d2f6fc.jpg.html]
If anyone could advise me on anything I can do about my issue, it's been like this for a bit, even with my 10-22 or 70-200 it doesn't AF at all or misses. Perhaps it's time to upgrade to a 7D or even FF?