The Red Filter for HERO8 Black from PolarPro allows you to capture more accurate colors in blue and tropical water at depths from 15 to 75'. It's designed to be attached to the protective housing for the HERO8 Black and it features a dual-lock snap and a twist-mounting mechanism. The mounting mechanism incorporates an integrated thumbscrew that quickly locks/unlocks the filter. For optimal image quality, the filter is fine-tuned for the HERO8's white balance.