![Dorr 77mm UV Protect DHG Slim Filter](http://dorrfoto.co.uk/cdn/shop/files/316077.jpg?v=1722424659&width=1445)
A 77mm UV filter allows only the desired light. Increased UV radiation that can cause, especially in the midday, blue prints will be suspended from the UV filter. A UV filter is completely colourless and doesnt caused any loss of light. It can therefore be kept on your lens. A 77mm UV filter protects your valuable objective front lens against dust, dirt, moisture and mechanical stress, such as scratches.