KitDive 40m/135ft Underwater Waterproof Camera Housing Case for Canon PowerShot G1X Mk II [IPX8*] Key features: Inbuilt leak detection sensor & Dual fiber-optic ports. CamDive Red diving filter: Starting from 15-20 ft Underwater, red color starts to wash out by the filtering effect of water, the deeper you dive the more of the warm red spectrum is filtered out from the ambient light.