Nikon DG-2 Eyepiece Magnifier is designed to increase the magnification of the central area of the finder image by 2x. The eyepiece adjustment offers a diopter correction range of -5 to +1. The DG-2 is recommended for critical focusing in close-up photography.
To use with Nikon D100 or D70, the Nikon Eyepiece Adapter is required. The magnifier screws onto the camera's eyepiece after removal of eyepiece cover. The DK-7 eyepiece adapter ring is an optional accessory used with DG-2.