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Nikon's New 300mm f/4 Looks Impressive
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<blockquote data-quote="Bengt Nyman" data-source="post: 458350" data-attributes="member: 13692"><p>Thanks for the link to the article.</p><p>I believe that the key part of the article explaining the speed of AF has to do with the reduction of incoming light resulting from the use of the TC:</p><p>"<span style="color: #000000"><span style="font-family: 'Times New Roman'">One way to compensate is to integrate the signal longer on the AF sensor so that there will be enough signal-to-noise ratio for a decent signal to determine focus, thus slowing the system down."</span></span></p><p><span style="color: #000000"><span style="font-family: 'Times New Roman'"></span></span></p><p><span style="color: #000000"><span style="font-family: 'Times New Roman'"></span></span></p></blockquote><p></p>
[QUOTE="Bengt Nyman, post: 458350, member: 13692"] Thanks for the link to the article. I believe that the key part of the article explaining the speed of AF has to do with the reduction of incoming light resulting from the use of the TC: "[COLOR=#000000][FONT=Times New Roman]One way to compensate is to integrate the signal longer on the AF sensor so that there will be enough signal-to-noise ratio for a decent signal to determine focus, thus slowing the system down." [/FONT][/COLOR] [/QUOTE]
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Nikon's New 300mm f/4 Looks Impressive
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