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Message: <blockquote data-quote="DanC.Licks" data-source="post: 3292406" data-attributes="member: 111263">Interesting, especially his observations on relying on S-AF. I use S-AF almost all the time, even with the 75-300. C-AF wanders too much. I find "tapping", that is, shooting a lot of S-AF shots in quick succession more reliable, that is if the lens doesn't go searching. The problem there is burst mode. There are times when 7-10 fps is very useful, so which AF to use? Academic so far as I seldom if ever have needed it with the 75-300.It will be really interesting to see whether the 300/4 brings any improvement here.</blockquote>