Sealife SL970 Wide Angle LensIncrease your underwater field of vision by 50% with the Sealife Wide Angle Lens for Reefmaster Cameras. Lens easily snaps on and off underwater, and works with all SeaLife 35mm and digital cameras. Model Number: SL970 24 mm lens equivalent Can increase field of view by about 50% 3 element, high quality optical glass lenses Snaps easily on and off even while underwater