Sony FDA-EP16 Eyecup for Select Sony Cameras

The Sony FDA-EP16 Eyecup for Select Sony Cameras is a viewfinder frame for select Sony mirrorless and SLT cameras. This eyecup is intended to prevent stray light, which could make focusing and composing an image difficult, from coming in between a compatible camera's viewfinder and the eye it is held up to. The rubber cushioning it provides serves to promote comfort during use as well as to protect the surfaces of eyeglasses or sunglasses if they are worn while holding a compatible camera up to one's eye.