[Name] Nikon DK-21 rubber eye mask
[Function] Prevents the eyepiece from fogging and is easy to view
[Be applicable] Nikon D750 D610 D600 D7000 D90 D200 D80 D70s D70
The eyecup is mainly used to prevent light from entering the eyepiece when the bulb is exposed for a long time. It can also prevent the eyepiece from being scratched when the camera is not used, and to prevent debris from entering the viewfinder when the camera is stored.