Nikon D810 Product Manual - Page 47

❚❚ Detaching the Lens Be sure the camera is off when removing or exchanging lenses. To remove the lens, press and hold the lens release button (q) while turning the lens clockwise (w). After removing the lens, replace the lens caps and camera body cap. D CPU Lenses with Aperture Rings In the case of CPU lenses equipped with an aperture ring (0 422), lock aperture at the minimum setting (highest f-number). A Diopter-Adjustment Viewfinder Lenses Corrective lenses (available separately; 0 438) can be used to further adjust viewfinder diopter. Before attaching a diopter-adjustment viewfinder lens, remove the viewfinder eyepiece by closing the viewfinder shutter to release the eyepiece lock (q) and then unscrewing the eyepiece as shown at right (w). 23