View single post by jk
 Posted: Wed Mar 4th, 2020 07:08
jk



Joined: Mon Apr 2nd, 2012
Location: Carthew, Cornwall, United Kingdom
Posts: 6874
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Eric wrote:
I am not doubting the principal but I've never found that a problem.

I am old school and still feel I am quicker moving the camera to the subject rather than moving focus points around the screen. (Anyway I always forget to move them back afterwards!) So it's second nature for me to centre the bird. 

But I am planning to photograph Hobby's catching butterflies this Summer....so I may hang onto the D500 till then. ;-)

Ah that is where we differ in operating principle (maybe).

I put the D500 on Dynamic Area AF-C 153 points, and then it will capture lock as bird(s) enter the viewfinder and the AF lock is achieved before it is in the central section.  I cant do the same on the D850 which only has Dynamic Area in the central section.

I have just been looking at the D850 manual.  They have a section called Subject Tracking AF (see page 43).  This seems to provide similar functionality to the D500 as it says "Position the focus point over your subject and press the center of the multi selector.  The focus point will track the selected subject as it moves through the frame.  To end press center of the multi selector again."

I find that this works well for me.



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