Think Tank Eyepiece EP-CMIII

Think Tank's Hydrophobia Covers are ideal for keeping your camera dry while out shooting in the wet and wild. The EP-CM III Eyepiece will connect a Canon EOS 1D Mark IV, EOS 1D Mark III or EOS 1Ds Mark III to a Hydrophobia Cover and allow you to keep shooting in the rain. Ideal for wildlife or outdoor sports photographers.

Price: 30.25 from Wex Photo Video