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General Photography
Macro
Mountain Flowers w/o glasses
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<blockquote data-quote="nickt" data-source="post: 570987" data-attributes="member: 4923"><p>Af-a, af-s, as-c are how the motor behaves once focus is found. Af-s will acquire focus once and stop (as long as shutter button is held). It allows for recomposing. Af-c will continue to servo as long as the button is pressed. You cannot recompose. Af-a in theory will start out in af-s and move to af-c if the subject moves.</p><p></p><p>There is no right answer on whether you should use af-s or af-c. You can do fine with either as long as you know how it works. Many would use af-s, that is fine. I would use af-c as I did in the picture above. It might come down to if you need to recompose (af-s is better for that). Most would agree though not to use af-a. I don't think anyone here likes it and I would say in a macro situation af-a stayed 100% at af-s anyway, so no harm</p><p>I like af-c for macro along with a single focus point. This allows me to wobble all I want while trying to take the picture and focus will keep up with my movement. </p><p></p><p>I don't want to push a new technique on you, but using af-c with the back button lets you have the best of both af-c and af-s modes for an instant decision as you take each picture. But learn what you like about af-s and af-c before exploring a new technique.</p></blockquote><p></p>
[QUOTE="nickt, post: 570987, member: 4923"] Af-a, af-s, as-c are how the motor behaves once focus is found. Af-s will acquire focus once and stop (as long as shutter button is held). It allows for recomposing. Af-c will continue to servo as long as the button is pressed. You cannot recompose. Af-a in theory will start out in af-s and move to af-c if the subject moves. There is no right answer on whether you should use af-s or af-c. You can do fine with either as long as you know how it works. Many would use af-s, that is fine. I would use af-c as I did in the picture above. It might come down to if you need to recompose (af-s is better for that). Most would agree though not to use af-a. I don't think anyone here likes it and I would say in a macro situation af-a stayed 100% at af-s anyway, so no harm I like af-c for macro along with a single focus point. This allows me to wobble all I want while trying to take the picture and focus will keep up with my movement. I don't want to push a new technique on you, but using af-c with the back button lets you have the best of both af-c and af-s modes for an instant decision as you take each picture. But learn what you like about af-s and af-c before exploring a new technique. [/QUOTE]
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