Hoya R72 infrared filter

Product Description

Hoya R72 720nm Infrared (IR) Filter

The Hoya R72 is a specialized infrared filter that blocks nearly all visible light (wavelengths below ~720nm) while transmitting infrared radiation. It enables dramatic, surreal infrared photography with digital or film cameras and is also used in scientific, surveillance, and agricultural imaging applications.

Key Features & Specifications:

• Type: Infrared (IR) Bandpass Filter

• Cut-off Wavelength: 720 nm (R72 designation)

• Effect: Appears opaque black to the eye; transmits infrared light for unique photographic effects.

• Primary Use: Converts a standard camera (with modified or IR-sensitive sensor) for infrared imaging.

Applications:

• Creative Infrared Photography: Produces dreamlike landscapes with white foliage and dark skies.

• Scientific Imaging: Vegetation health analysis (NDVI), forensic investigation, artwork inspection.

• Technical Use: Testing IR LED/sensor sensitivity, lab optical setups.