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06-17-2015, 01:31 PM   #1
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645Z rear button AF

I always use the rear buttons for AF on my other cameras and the 645 thankfully also provides this option. However, I am having trouble disabling the 're-focusing' with the shutter release button. Normally I would focus with the rear button, recompose and shoot, using the shutter release button for just that, taking the shot.

However, I am unable to find this option in the custom or other menus which would de-link the shutter release from AF. A workaround is to keep the rear AF button pressed all the time once AF is locked, recompose with the finger on it and then press the shutter release when desired. This is cumbersome as the AF button has to be kept pressed continuously (even on the AF-S) setting. The moment I take the finger off the AF button, the shutter release starts to AF.

Am I missing something simple?

Thanks in advance.

Pradeep

06-17-2015, 02:10 PM   #2
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You'll want to set the AF button customization setting to "enable AF2". That disables half-press focusing.

Adam
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06-18-2015, 04:03 AM   #3
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Thanks Adam, that worked. I had not dug deeper into the customization of the AF button.

Pradeep
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