The central AF sensor is almost always the most accurate

Started Jun 24, 2012 | Discussions thread
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meng235 New Member • Posts: 20
The central AF sensor is almost always the most accurate

This link ( http://www.cambridgeincolour.com/tutorials/camera-autofocus.htm ) stating that ( ... the central AF sensor is almost always the most accurate, for off-center subjects it is often best to first use this sensor to achieve a focus lock (before recomposing the frame....) .... but, what is the allowable tolerance between the Center & off center focus points .. i.e, what is the limit beyond which we can say that there are a focusing issue @ the off center focusing sensors ? ..From my opinion, finding an answer of this question may put a limit to the discussion i see regarding D800 focusing issue....Thanks

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Nikon D800 Nikon AF-S Nikkor 85mm f/1.8G Sigma 50mm F1.4 DG HSM | A
Nikon D800
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