Nikon F obiettivo 420-800 mm MF teleobiettivo zoom per DSLR D850 D750 D3500 D5500 D7100

The lens has a focus ring located near the front. Manually rotate this focus ring to adjust the focus. Turn the ring slowly until the subject you want to focus on appears sharp and clear. Also, with manual lenses, the aperture value is not displayed in the viewfinder (F00 is displayed).

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