
The Hoya R72 Infrared filter is specifically designed for infrared photography with digital cameras and infrared film.
Infrared light starts in the high-red area of the visible spectrum at around 750nm and goes up beyond 1000nm. This light is not visible to the naked eye. The R72 filter only allows light to pass through the lens from the very high red edge of the visible spectrum. Infrared photography yields different results because an object in a scene reflects infrared light differently than normal light.
Due to the nature of infrared light, filter factor and exposure compensation vary widely from visible light and depend largely on lighting conditions.
The R72 Infrared filter is useful:
| Filter Type | Hoya R72 (88A) Infrared |
| Brand | Hoya |
| Filter Size | 67mm |
| Filter Material | Glass |