The Dorr Digiline HD Slim UV Protect Filter 40.5mm protects the front lens from moisture, dust and scratches. It is completely neutral in colour and there is no loss of light. The filter boasts of a 6x multi-coating on both sides for a light transmittance of more than 99%. The anti-reflex metal mount prevents reflections. The front thread allows the use of other accessories. Also available in diameters from 37 to 95 mm.