Wikidata facts
- Instance of
- photographic technique
- Subclass of
- photography
- Image
- Montreal-in-infrared.jpg
Show 4 more facts
- Commons category
- Infrared photography
- Commons gallery
- Infrared photography
- Stack Exchange tag
- photo.stackexchange.com/tags/infrared
- hashtag
- InfraredPhotography
Sources (2)
via Wikidata · CC0
~31 min read
Encyclopedic overview
This comparison shows two photographs of the same tree, with the top image in near infrared and the bottom image in visible light.
In infrared photography, the photographic film or image sensor used is sensitive to infrared light. The part of the spectrum used is referred to as near-infrared to distinguish it from far-infrared, which is the domain of thermal imaging. Wavelengths used for photography range from about 700 nm to about 900 nm. Film is usually sensitive to visible light too, so an infrared-passing filter is used; this lets infrared (IR) light pass through to the camera, but blocks all or most of the visible light spectrum. These filters thus look black (opaque) or deep red.
Excerpted from Wikipedia’s “infrared photography” article, available under the CC BY-SA 4.0 licence.