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How do you fix / fine-tune the focus on a zoom lens? Nikon states

The D850 can fine-tune autofocus automatically. The results can be used with all lenses of the same type.

But does it also mean that fine-tuning one zoom lens in one specific focal length and aperture will fix focus problems for all focal lengths and apertures? (ie. calibrating a 16-35mm at f4 16mm will also provide proper calibration at 35mm f9?)

What about distance to the calibration target? Does it play any influence if you calibrate at a particular distance but then shoot your subjects at another?

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