Think Tank Hydrophobia Eyepiece EP-C for Most Canon DSLR Cameras
The black Hydrophobia Eyepiece EP-C for most Canon DSLR Cameras from Think Tank is required for use on your Hydrophobia rain cover. It allows you to see through the camera's eyepiece once the rain cover is installed. It should be noted that this eyepiece does not fit the Canon Mark III, Mark IV models and the EOS 7D.
Compatibility
Hydrophobia Compatibility