D7100 Autofocus Hunts
I've been using a D7100 with a Nikon 18-200 lens for a couple years now and have recently noticed a lot more focus hunting than I remember before. I'm using BBF, AF-C and usually d9 focus area selections. It seems like no matter what the light levels are it focuses to the selected focus point then either hunts slightly around it or goes all the way to minimum distance focus then back to the point…and repeat. Same symptoms with my Sigma 50-500 lens but not the Sigma 10-20. No difference in symptoms if I change to AF-A mode or AF-S mode there's also no effect. Running the latest firmware C-1.03 and L-2.005…and it seems like this started somewhere around the time I upgraded to this version of the firmware although I'm not positive on that.
Anything else I should be checking to hunt this problem down? Thanks.
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