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D3S Q? about BB Focus, and the Release mode.......

JosephK

Seattle, WA, US
7108 posts

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"RE: D3S Q? about BB Focus, and the Release mode......."

JosephK Silver Member Fellow Ribbon awarded for his excellent and frequent contributions and sharing his in-depth knowledge and experience with the community in the Nikonians spirit. Nikonian since 17th Apr 2006
Fri 12-Apr-13 04:28 AM

One advantage of the af-on button is that you get the ability to do AF-C and AF-S without changing any settings once you get them right:
af system to af-continuous
focus button (a5) to "af-on only"
shutter release (a1) to "release"
This is the normal continuous focus mode using af-on.

To get the normal af-c behavior, press and hold the af-on button. To mimic af-s, press and release the af-on button.

Because you have the shutter set to "release", which allows the camera to take out-of-focus pictures, you can pick any focus point, press and release the af-on button to mimic af-s, recompose (so that the focus point is not on the subject), and trip the shutter even though the chosen focus point is no longer in focus.

The down side to this is that if you don't get the subject in focus, the camera will take the out-of-focus picture.

When in true af-s mode, the a2 setting may need to be in "release" if you are doing focus-and-recompose since you will be moving the chosen focus point off the subject. (I don't recall the last time I shot in af-s mode due to af-on.)

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Joseph K
Seattle, WA, USA

D700, D200, D70S, 24-70mm f/2.8, VR 70-200mm f/2.8 II,
50mm f/1.4 D, 70-300mm f/4.5-5.6 VR, 18-70mm f/3.5-4.5 DX

A general, generic topic D3S Q? about BB Focus, and the Release mode....... [View all] , hollingwD80 , Thu 11-Apr-13 10:45 PM
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