Features:Brand new and high quality.
Red filter is to compensate for red light loss which takes place under water.
The reason being at about 10 feet there is no red light.
The GoPro Hero3+ Hero4 white balance is thrown off because of the red light loss causing the camera to record colors which are too blue or too green.
A red filter compensates for the red light loss tricking the camera into recording natural colors the way you see them.
Used in 10-20m below water aroud noon to restore the red light absorbed by the water.
Item Name : Red Filter.
Color : Red.
Material : Organic Glass.
How to Use:Easy snap-on instalation.
Suitable For:For Gopro 4S housing case.
Package Included:1 x Red Filter (Note: Camera is not included.)
NO Retail Box. Packed Safely in Bubble Bag.