Photographic film that is sensitive to infrared radiation.
Film which is highly sensitive to red/near infrared radiation. A red filter should be used to get the best effect with this film.
A mark on the barrel of a lens that indicates proper focusing when using infrared film. The mark is typically a red or white line that is slightly apart from the focusing indicator for normal film. Sometimes the letter R is next to it.
Infra Red. This uses a beam of light that is invisible to us humans to either control a device without wires or as a method of transferring data from camera to computer (or printer) without cables. Some cameras also employ infrared in the auto focusing system.
(InfraRed) A method of transferring data from camera to a computer using a beam of invisible light, requiring no cables
Transmits in the spectrum of infra-red light, must point at receiver (line of sight) or reflect IR to receiver, with typical range limited to total of 30 feet, including reflected distance. Most projectors have IR sensor in both front and rear, flat panels generally a single sensor in front.
Cuts infrared lighting during day, providing true colors, removed at night draws in surrounding light sources, enhancing sensitivity for clear image. Auto control function, can be turned on/off/manually adjusted.
Wavelengths of invisible light that are longer than about 720nm.
A small red marking to one side of the lens focus scale that you use to refocus a photograph when using infrared film.
Nonvisible radiation from the long wavelength portion of the electromagnetic spectrum.
A portion of the Electromagnetic Spectrum to which the human eye is not sensitive but which can be used with infrared film and Filter to record images of unusual tonal balance. Infrared rays produce heat when they strike objects. See: Heat Filter.
Invisible to human eye, infrared radiation is below red in light spectrum. Infrared radiation is used in wireless transmitters, for example, to control some camera or flash functions.
Well-suited for surveillance of low-light or no-light areas. Lens surrounded by infrared LEDs to illuminate scene. Usually fixed focal length lens. Produces B W images in low light, may offer color in day, B W at night.
In infrared photography with most lenses, the plane of sharpest focus is slightly farther away than that in visible-light photography.
Alarm using infrared light to detect movement.
Specially sensitized film that detects invisible infrared rays.
Light source working in infrared frequency range.
Refers to taking pictures in light beyond the visible spectrum.
Electromagnetic radiation with wavelength greater than 750 nanometers, invisible to human eye.