Nikon D800E User Manual - Page 60

A Adjusting Viewfinder Focus If you are unable to focus the viewfinder as described above, select single-servo autofocus (AF-S; 0 91), single-point AF (0 93), and the center focus point (0 96), and then frame a high-contrast subject in the center focus point and press the shutter-release button halfway to focus the camera. With the camera in focus, use the diopter adjustment control to bring the subject into clear focus in the viewfinder. If necessary, viewfinder focus can be further adjusted using optional corrective lenses (0 388). A Diopter-Adjustment Viewfinder Lenses Corrective lenses (available separately; 0 388) can be used to further adjust viewfinder s diopter. Before attaching a diopter-adjustment viewfinder lens, remove the DK-17 viewfinder eyepiece by closing the viewfinder shutter to release the eyepiece lock (q) and then unscrewing the eyepiece as shown at right (w). 36