Lens Fungus & Ultra Violet Light.

On this video I describe in detail the method I use to "sanitize" optical devices. Several parts o cameras like mirror viewfinders and lenses can catch fungus, which is very contagious and can cause permanent damage to a lens with time. UV light is a great tool to prevent or kill fungus. UV light doesn't remove existing fungus from a lens. It kills the spores, but the mark will need to be cleaned.