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XT2, 50-140 zoom used at 140mm end at f4, min shutter speed 1/500

Been testing the focus tracking facilities of this combination.

Subjects used in tracked, people walking, cyclists and a tramcar moving around city centre.

Using OIS on and off, single point 3x3 focus, 5x5 focus plus zone focus, 5 and 8fps the results are very good.

More in focus shots without OIS in general.

 

The shots of the tramcar coming towards me are excellent, 90-100% very sharp but when the tramcar is going away from me, the results are really poor, Most are reasonably sharp, nothing I would want for keepers and not a patch on the sharpness of the others where the train is coming in a direct line towards me.

I have only tried AFC Custom mode 2 which should be ok, anyone any ideas?

 

I tried the same with cyclists going away from me with similar results.

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