The Tiffen IR WW 4 x 5.65" polarising filter enhances colour and contrast by eliminating reflections and hot spots on faces, whilst improving detail, definition and colour saturation.nnn- 2 filters in one (IR + POLA), reducing multiple surfaces and potential reflections from stacked filtersn- Designed for digital cameras with CMOS and CCD sensors having increased sensitivity to the Red channeln- Absorbs pollution in the far red (visible), near infrared and far red wavelengthsn- The IR-absorbing component is proportional to the ND valuen- Eliminates unwanted reflections on non-metallic surfaces such as water or glassn- Saturates colours for better contrast without affecting overall colour balancen- Eliminates ultraviolet rays to suppress haze in outdoor shootsn- Ideal for lightweight or clip-on matteboxesnnnSpecificationsnn