Supplied with many of the SLR cameras as standard equipment, providing effective cushioning and shielding of stray light. Camera Eyecups provide cushioning around the camera's eyepiece, and are especially useful to eyeglass wearers.
For the Canon EOS Models ( Newer Models may not be shown )
EOS-1D Mark III/IV,
EOS-1Ds Mark III,
EOS 5D Mark III