Used this to film surfing and wakeboarding but I have had it down to 25 feet before as well. Previous owner said it was good to 90 feet but I have never tried. Small chip on the rear panel that has been there since I bought it but it never leaked. Made by Reef Scuba Accessories. $125 but will entertain all offers. Also have a Sony TRV - 25 Digital Camcorder that can go with it for a package price of $200 obo.