The from is a color correction filter designed to remove excess green color cast encountered green-rich water, such as freshwater lakes and reservoirs or salt water that appears green due to high algae content. It works best at depths between 15 and 70'. The filter is specifically designed to fit the Dive Housing and the Wrist Housing for the HERO3, HERO3+, and HERO4 cameras. It is not compatible with the Standard Housing.
The filter snaps into place for tool-free installation, and features scratch-resistant, optical-grade glass designed to ensure optimal image clarity. A tether to secure the filter to the housing and a carrying bag are included.