thinkTANK Hydrophobia EP-S for Sony A7 &A9 Series

EP-S: Hydrophobia eyepiece fits Fits Sony a7/a9 series camera bodies and the A77; CNC machined Delrin eyepiece with high density foam padding. Replaces View finder hood, enabling waterproof protection for your camera when using Hydrophobia rain covers. Remove the camera’s eyepiece by sliding it upward and off the viewfinder. Align the groove on the EP-S with the rails on the camera’s viewfinder. Firmly slide the EP-S down on the viewfinder rails until fully seated.