KitDive 40m/130ft Waterproof underwater camera housing case for Nikon 1 J5 (10-30mm) & Camdive Red diving filter 67mm [IPX8*] Key features: Inbuilt leak detection sensor & Interchangeable port. 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. This particular model comes with 10-30mm port.