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Autofocus mechanism
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<blockquote data-quote="Stoshowicz" data-source="post: 369072" data-attributes="member: 31397"><p>I didn't want to explain the questions I was addressing in real terms because I didn't want the question I was asking to be side stepped.. but Ill tell you some of the issues I am looking at,, a friend of mine shifted habit from regular shutter button operation , to back-button focusing , he feels his images are coming out clearer and really likes this other technique.. but why would this make a difference if this technique is the same as single finger pressing of the shutter release button? either the mechanisms for focus or VR are being used more effectively.. the answer may affect whether he routinely uses the VR or not..another issue is to answer, just exactly how much wing feather detail might I expect to get on birds and bugs in flight,which really isn't feasibly replicated shot to shot.. I'm occasionally really cranking up on shutter speed I can gotten up to even 6000th of a sec and I still cant see the same fine scale details that I can on similarly distanced motionless birds but that softness could be for several reasons. Another issue , is that Im looking at getting a longer lens , do I need it to have VR if its going to be used at higher shutter speeds as well? If I got a faster lens , would this be better or worse at freezing for detail than trying to use a speedlight If I'm taking my pix in decent ambient light anyway? </p><p>What I'm trying to say here is that since a modern DSLR is such a very sophisticated device , there is a great deal if information which may be either immediately salient or generally informative, and for which trial and error isn't reliably certain ( because there IS so many situation specific factors- NOT because there isn't ). Regardless of the rules of thumb that some folks may find works for them - just physically speaking, without subjective overlay , VR isnt conclusively helping or harming anything in the image at shutter speeds over sync,, so you can just leave it on if you're shooting handheld and have the advantage of a steadier view of your bird. If you do most of your photography at very slow shutter speeds,,and if VR isnt reading the motions-vibrations in those situations anyhow its not doing anything then either.</p><p>If the feature is inactive, well I just dont care what someones subjective experience tells them is going on ,, -THE THING ISNT ACTIVATED <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Stoshowicz, post: 369072, member: 31397"] I didn't want to explain the questions I was addressing in real terms because I didn't want the question I was asking to be side stepped.. but Ill tell you some of the issues I am looking at,, a friend of mine shifted habit from regular shutter button operation , to back-button focusing , he feels his images are coming out clearer and really likes this other technique.. but why would this make a difference if this technique is the same as single finger pressing of the shutter release button? either the mechanisms for focus or VR are being used more effectively.. the answer may affect whether he routinely uses the VR or not..another issue is to answer, just exactly how much wing feather detail might I expect to get on birds and bugs in flight,which really isn't feasibly replicated shot to shot.. I'm occasionally really cranking up on shutter speed I can gotten up to even 6000th of a sec and I still cant see the same fine scale details that I can on similarly distanced motionless birds but that softness could be for several reasons. Another issue , is that Im looking at getting a longer lens , do I need it to have VR if its going to be used at higher shutter speeds as well? If I got a faster lens , would this be better or worse at freezing for detail than trying to use a speedlight If I'm taking my pix in decent ambient light anyway? What I'm trying to say here is that since a modern DSLR is such a very sophisticated device , there is a great deal if information which may be either immediately salient or generally informative, and for which trial and error isn't reliably certain ( because there IS so many situation specific factors- NOT because there isn't ). Regardless of the rules of thumb that some folks may find works for them - just physically speaking, without subjective overlay , VR isnt conclusively helping or harming anything in the image at shutter speeds over sync,, so you can just leave it on if you're shooting handheld and have the advantage of a steadier view of your bird. If you do most of your photography at very slow shutter speeds,,and if VR isnt reading the motions-vibrations in those situations anyhow its not doing anything then either. If the feature is inactive, well I just dont care what someones subjective experience tells them is going on ,, -THE THING ISNT ACTIVATED :) [/QUOTE]
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