JJC EN-2 Camera Eyecup Eyepiece for Nikon D40 D40X D60 D3000 D300 D300S D70S D70 D3100 D5100 New Eyepiece for Canon Digital SLR Cameras Perfect replacement for Eyepiece Extender Useful for eyeglass wearers and others to keep the tip of the nose from touching the camera body Block out unwanted light from your viewfinder