M12-UV-6mm: M12 Quartz Lens Assembly 6mm $1,200.00 each + – Add to cart The add to cart button will appear once you select the values above Contact us for more information M12 6mm Quartz Lens Assembly for XNiteUSB2S-MUV Increases UV sensitivity to 300-380nm. 18.5mm Diameter front element MgF2 Antireflection Coated