DK-23 Camera Eyecup Eye Cup for Nikon D7000 D5100 D3100 D3000 D90 D80 D70S D70 D60 D90 D80 D70S D70 D60 DSLR It's 100% compatible with Nikon F80 F65 F55 FM10 Nikon D7000 D5100 D5000 D3100 D3000 Nikon D90 D80 D70S D70 D60 It provides cushioning around the camera's eyepiece, and is especially useful to eyeglass wearers, and it is made of hollow rubber for soft eye contact. You can even view it with your glasses on.It is designed to provide a soft landing for eyes and glasses on select Nikon cameras. Replacement for Nikon Eyecup DK-21 DK-23