Think Tank Photo EP-S Hydrophobia Eyepiece for Sony a7/9-Series and a77 Cameras

Use this Hydrophobia Eyepiece with the Hydrophobia V3 Rain Cover to allow full access to your viewfinder while protecting your camera. This eyepiece is required for proper use of the Hydrophobia V3 Rain Cover, which features an eyepiece pocket built into the bottom of it.