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<blockquote data-quote="J-see" data-source="post: 457788" data-attributes="member: 31330">What can be possible is that by using AF-A you cause a delay that gives the lens the time required to obtain focus which it does not get when you shoot AF-C. As I said, if you shoot AF-C it is critical you don't start shooting before the cam obtained focus since it only makes it harder to catch up.When shooting fast lenses you can start a bit early since a f/2.8 gets focus quite fast and can manage quite well in between exposures but a slow lens will have a very hard time.AF-A isn't a special focus method. It really is just AF-&quot;S or C&quot;. You're never shooting any other method than one of both so if it does well in AF-A, it does well in either S or C.If it works well in AF-A, you have to be doing something wrong in the other modes.I can't know how you shoot in AF-C but if I have to guess, you might cause a problem by releasing too early and holding the button down. If I shoot a slow lens, even when I have obtained focus, I see in my shots when the lens starts to struggle during a burst and when it no longer can keep up. If you start out of focus, it's very possible you might only have one, or even none in focus during a 5-6 shot burst.</blockquote>

[QUOTE="J-see, post: 457788, member: 31330"] What can be possible is that by using AF-A you cause a delay that gives the lens the time required to obtain focus which it does not get when you shoot AF-C. As I said, if you shoot AF-C it is critical you don't start shooting before the cam obtained focus since it only makes it harder to catch up. When shooting fast lenses you can start a bit early since a f/2.8 gets focus quite fast and can manage quite well in between exposures but a slow lens will have a very hard time. AF-A isn't a special focus method. It really is just AF-"S or C". You're never shooting any other method than one of both so if it does well in AF-A, it does well in either S or C. If it works well in AF-A, you have to be doing something wrong in the other modes. I can't know how you shoot in AF-C but if I have to guess, you might cause a problem by releasing too early and holding the button down. If I shoot a slow lens, even when I have obtained focus, I see in my shots when the lens starts to struggle during a burst and when it no longer can keep up. If you start out of focus, it's very possible you might only have one, or even none in focus during a 5-6 shot burst. [/QUOTE]

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