1. The eyecup works as a cushioning around the cameras eyepiece, which provides a protection for the cameras eyepiece.
2. No matter you wear eyeglass or not, the hollow rubber of the eyecup is comfortable for your eyelid contact and your glasses.
3. Plastic with rubber, it impress you a comfortable feeling following a pleasant experie
4. Compatible with Nikon D5 / D4s / D4 / D500 / D810A / D810 / D800 / D3X / D3 / D3s / D700 / D2Xs / D2X / D2H / F6.