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Best AF Mode For Models
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<blockquote data-quote="nickt" data-source="post: 492047" data-attributes="member: 4923"><p>Basically it lets you have instant access to af-c focus and a pseudo af-s mode. You achieve this by setting af-c mode, but it is used only as needed when you press the back button. Its sort of like manual focus at the push of a button. Hold the button down and you get normal af-c continuous focus. Good if your subject is active. Let the button go and focus stops right where it was. So you can now easily recompose. Even a minute later and as many times as you want. No need to keep a half press on the shutter like you would with normal af-s mode. Its also good for anticipated action. Focus on a location, let go of the button and you are ready to snap a picture when the subject arrives. I'm not sure if your d50 will do it though. I flipped through the pdf manual and I'm not convinced. You need to be able to set release priority for af-c mode. Or the camera needs to automatically use release priority in af-c mode. Release priority will let the camera fire even it it does not see focus. You would need this ability to focus and recompose with bbf since the focus point may no longer see focus. My d3100 cannot do it.</p><p></p><p></p><p><a href="http://nikonrumors.com/2014/01/25/how-to-use-nikons-af-on-and-back-button-autofocus.aspx/" target="_blank">How to use Nikon's AF-ON and back button autofocus | Nikon Rumors</a></p><p></p><p><a href="http://www.luminescentphoto.com/blog/2010/11/05/nikon-af-on-technique/" target="_blank">Mastering the AF-ON Technique with Nikon DSLRs | Digital Photography Insights by Jason Odell</a></p></blockquote><p></p>
[QUOTE="nickt, post: 492047, member: 4923"] Basically it lets you have instant access to af-c focus and a pseudo af-s mode. You achieve this by setting af-c mode, but it is used only as needed when you press the back button. Its sort of like manual focus at the push of a button. Hold the button down and you get normal af-c continuous focus. Good if your subject is active. Let the button go and focus stops right where it was. So you can now easily recompose. Even a minute later and as many times as you want. No need to keep a half press on the shutter like you would with normal af-s mode. Its also good for anticipated action. Focus on a location, let go of the button and you are ready to snap a picture when the subject arrives. I'm not sure if your d50 will do it though. I flipped through the pdf manual and I'm not convinced. You need to be able to set release priority for af-c mode. Or the camera needs to automatically use release priority in af-c mode. Release priority will let the camera fire even it it does not see focus. You would need this ability to focus and recompose with bbf since the focus point may no longer see focus. My d3100 cannot do it. [url=http://nikonrumors.com/2014/01/25/how-to-use-nikons-af-on-and-back-button-autofocus.aspx/]How to use Nikon's AF-ON and back button autofocus | Nikon Rumors[/url] [url=http://www.luminescentphoto.com/blog/2010/11/05/nikon-af-on-technique/]Mastering the AF-ON Technique with Nikon DSLRs | Digital Photography Insights by Jason Odell[/url] [/QUOTE]
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