Hoya 82mm R72 Infrared Filter

Infrared Filter is used sed for photography with infrared films. These infrared films are sensitive to ultraviolet rays and the shorter wavelengths of the visible spectrum so it is necessary to filter out all but the infrared rays. The filter is made with anti-reflective multi-coating that are not just water and oil repellent for protection but also hardened to be scratch and stain resistant.

Product Features in Detail

Digital cameras need multicoated filters
Digital camera CCD or CMOS sensors are highly susceptible to reflections - this stray light can ruin your photographs! Don't risk your valuable photos by using bare-glass filters.

The clear advantage
Take a bare glass filter, hold it so that light reflection off the surface can be seen. Then take a long, very thin object like a pin or the tip of a pen and hold it over the filter so that its reflection can be seen. There will actually be two reflections of the pin on the surface, one a little more pronounced than the other. The more  pronounced reflection is from the front surface and the lighter one is from light reflecting off the rear surface. Now try it with a HOYA Digital Multi-Coated filter and see how much more dim the reflection is, a dimmer reflection means less light is reflected off the surface of the glass. 

A multi-purpose fine-weather filter
Absorbs the ultraviolet rays which often make outdoor photographs hazy and indistinct. A multi-purpose, fine-weather filter for color as well as black and white films. Also serves as a permanent lens protector.

Color and contrast enhancement
Light rays which are reflected by any surface can become polarised so polarising filters are used to select which light rays enter your camera lens. CIR-PL filters allow you to remove unwanted reflections from non-metallic surfaces such as water, glass etc. They also enable colors to become more saturated and appear clearer with better contrast. This effect is often used to increase the contrast and saturation in blue skies and white clouds. HOYA's polarising filters will not affect the overall color balance of a shot.

Protect your valued lenses
This is the ultimate in clear filters. It will not affect the color balance or performance of your lenses in the slightest. However, constant use will protect your valued lenses from expensive front element damage which could be caused by dirt, knocks or scratches. A cracked filter costs nothing in comparison to a cracked lens.