The Canon 72 mm Protect Lens Filter is a clear filter that helps to guard your front lens element from dust and scratches. Designed to fit lenses with a filter thread of 72 mm, you can leave this clear filter on your lens during use as it doesnt impact the colour balance. Benefits Designed to fit lenses with a filter thread of 72 mm Help to protect the front element of lenses from finger prints, dust and scratches Colour balance is not impacted Clear filter provides no additional colour or contrast, allowing you to pair this filter with others What\'s in the box 72 mm Protect Lens Filter Compatibility EF 20mm f/2.8 USM EF 35mm f/1.4L USM EF 35mm f/1.4L II USM EF 50mm f/1.2L USM EF 85mm f/1.2L II USM EF 135mm f/2L USM EF 200mm f/2.8L II USM EF 180mm f/3.5L Macro USM TS-E 45mm f/2.8 EF 28135mm f/3.55.6 IS USM EF 70200mm f/4L IS II USM EF-S 1585mm f/3.55.6 IS USM EF-S 18200mm f/3.55.6 IS RF 24-240MM F4-6.3 IS USM