Z9 struggles to acquire focus for BIF

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kbrkr
kbrkr Senior Member • Posts: 1,923
Z9 struggles to acquire focus for BIF
10

I went out today to test the Z9 with the 100-400 shooting BIF at my local lake.  It was very overcast and dark and 1 hour before sunset.   I must say the Z9 struggled to acquire initial focus on flying objects against the sky.  I was shooting in AF-C, Wide Area Large with subject tracking.  The target was 1/3 of the frame.  I was in manual exposure, DX Crop mode, ISO 4500, F9, S 1250

Subject was moving towards me.   I did have the 100-400 in FULL focus mode, so it was hunting its full focus range.  Not being too familiar with the 100-400, I couldn't find the switch in time to limit focus.  I did notice better performance with birds with a busier background.   There was another user who reported a similar issue on DPReview, but I think he might have been in video mode.   I was using the updated firmware.

This is roughly the same performance I was seeing with the Z7II.

 kbrkr's gear list:kbrkr's gear list
Nikon Z9
Nikon Z9
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