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D200 AF System - underutilized?


Seattle, WA, US
7108 posts

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"RE: D200 AF System - underutilized?"

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
Wed 16-Jan-13 07:36 PM | edited Wed 16-Jan-13 07:39 PM by JosephK

>Any way to test this with inanimate objects? ie things that
>won't get upset at me for shooting for an hour. I hung a can
>on some 4' thread and gave it a swing.. probably 2' in each
>direction.. and I tried AFC "in the direction of
>swing" (can coming at/away from me).

Swinging the can diagonally would be a great test of you (to keep the can under the focus point) and the camera (to do the tracking).

Forward/backward is the hardest tracking to get right for the camera. This is where the lock-on time can come into play.

>Its my understanding that the d200 will detect panning and
>not "track", correct? so just swinging my camera
>around might not give me 'real' results.

No, tracking is always done by the camera. However, if you are using a VR lens, it can sense the panning and help there.

Note: AF-C is done in two phases. #1 is lock-on; the camera and you need to agree what the target is and the camera needs to get an initial focus lock. #2 is tracking; after the initial focus is gained (and only after) the camera will continue to adjust the focus as long as you keep the target under the chosen focus points. This takes some time to happen, thus starting the focus process early is important (1/2 to 1 second) so that it is already happening by the time you release the shutter.

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 D200 AF System - underutilized? [View all] , TonyStepper , Tue 15-Jan-13 07:01 PM
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