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Think Tank

Think Tank 006449 Hydrophobia Eyepieces Sony Nikon Canon Olympus

A precision-machined Delrin eyepiece that seals your viewfinder against rain when paired with Think Tank's Hydrophobia cover.

$24.75*
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*Price sourced from Amazon.com. Last updated:Oct 22, 2026.Price and availability are subject to change — details.

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Overview

The Think Tank Photo Hydrophobia Eyepiece (EP-15) is a purpose-built viewfinder accessory designed to create a waterproof seal between the photographer's eye and the camera when used in conjunction with Think Tank's Hydrophobia rain cover system. The eyepiece body is CNC machined from Delrin, an engineering-grade polymer chosen for its dimensional precision, resistance to moisture, and mechanical durability. Lined with high-density foam padding, it conforms to the face to block both water intrusion and stray light from entering the viewfinder during use.

Weighing just 0.64 ounces and measuring 3.4 x 3 x 0.5 inches, the eyepiece adds negligible weight and bulk to your camera. It is compatible with Sony, Nikon, Canon, Fuji, and Olympus cameras, and installs without tools over the existing viewfinder mount. While its primary role is to complete the weather seal when using a Hydrophobia rain cover, Think Tank designed it to remain on the camera as a permanent eyepiece upgrade, providing a more comfortable and padded viewing experience for everyday shooting as well.

Key Features

Wide Camera Compatibility: Fits Sony, Nikon, Canon, Fuji and Olympus cameras

Durable Construction: CNC machined Delrin eyepiece with high density foam padding

Simple Installation: Easy to install

Essential Rain Cover Component: Required for use with the Hydrophobia Rain Cover

Versatile Usage: Can be left on the camera for use without a rain cover

Waterproof Protection: Provides a waterproof seal for the camera eyepiece when used with Hydrophobia rain covers

Comfortable Viewing: High density foam padding ensures comfortable contact with the eye during extended shooting sessions

Specifications

Brand
Think Tank Photo
Model
006449 (EP-15)
Material
CNC machined Delrin with high-density foam padding
Compatibility
Sony, Nikon, Canon, Fuji, Olympus cameras
Product Dimensions
3.4 x 3 x 0.5 inches
Item Weight
0.64 ounces
Installation
Tool-free, easy install

Frequently Asked Questions

While it is designed as a companion to the Hydrophobia rain cover, the eyepiece can be left on your camera permanently and used on its own as a comfortable, padded viewfinder eyepiece even without the rain cover attached.
It is compatible with Sony, Nikon, Canon, Fuji, and Olympus cameras. Check Think Tank's compatibility list for your specific camera model.
It is designed for easy installation and fits over your camera's existing viewfinder eyepiece mount. No tools are required.
The eyepiece body is CNC machined from Delrin, an engineering-grade acetal resin known for its dimensional stability and durability, lined with high-density foam padding for a comfortable and weather-resistant seal against your face.

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