View single post by Gert
 Posted: Sun Sep 3rd, 2023 16:05
Gert



Joined: Wed Apr 18th, 2012
Location: Vejle, Denmark
Posts: 48
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I am back from vacation which started at the oldtimergrandprix at the Nürburgring and gave me a good chance of testing the AF tracking.

First thing to do (actually first thing to do when you get the camera) is the eable "focus point display" in af-c mode, that is, the camera will show the AF-point as green when it has achieved focus (should be the default setting but it is not...) - you can also choose a separate colour for 3D tracking.

First thing, I tried was 3D-tracking and it worked really well, place the focus point on the car to track and once the camera has achieved focus (goes green) you can see how the focus point follows the car as it moves across the frame and focus stays green all the time!
3D-tracking has two "modes", the items you enable within "AF subject detection" will have priority, that is, if you only enable car then it will try to detect a car. 
However you can disable "AF subject detection" then it will use the subject colour combined with closest priority similar to 3D-tracking on the Nikon DSLRs.

I have constructed a small sample image - the first 6 frames is at 30 frame/sec and missing sharpness is due to me not being good at tracing with 400mm lens at 1/100 sec. 
The 5 last frames is also taken at 20 frame/sec but I skipped some in order to show more information 


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Last edited on Sun Sep 3rd, 2023 16:05 by