Lens holder Size: M9x0.5, length 9mm Lens sizes: 6.33mm diameter Light transmittance: more than 98% Lens Focal Length: 4.02mm Back Focal Length: 4.8mm Working distance: 2.357mm Glass Material: L-BAL35 Lens attributes: Monolithic Surface Treatment: 405/445nm AR coating Notice: 1,Line Lens Special all kinds of red and blue/violet laser products 2.Please keep the lens clean. Packing: 1x laser lens with Copper tube



