Abstract: A conventional submersible camera utilizes an O-ring to waterproof the interior of the camera housing. Larger components are required to accommodate this O-ring, which increases the cost and size of the submersible camera. Disclosed embodiments utilize a sealing ring between a circumferential edge of a lens dome and the housing. These embodiments may also utilize a circular printed circuit board that lies in a plane that is perpendicular to the longitudinal axis of the submersible camera. Advantageously, these features enable the submersible camera to be more compact and manufactured at lower cost.