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IR Cut Filter: A must have for URSA Mini
IR Cut Filter: A must have for URSA Mini
Published: 2016/10/08
Channel: myvideoversion
IR & UV Cut-off Filter Effect
IR & UV Cut-off Filter Effect
Published: 2015/11/22
Channel: Orion17
What is INFRARED CUT-OFF FILTER? What does INFRARED CUT-OFF FILTER mean?
What is INFRARED CUT-OFF FILTER? What does INFRARED CUT-OFF FILTER mean?
Published: 2017/12/17
Channel: The Audiopedia
The Secret Behind Good Night Vision security cameras (IR Cut Filters)
The Secret Behind Good Night Vision security cameras (IR Cut Filters)
Published: 2014/02/22
Channel: Erik Spangler
Canon EOS 1200D / Rebel T5 IR Cut-off filter removal + my disassembly work-flow
Canon EOS 1200D / Rebel T5 IR Cut-off filter removal + my disassembly work-flow
Published: 2015/02/22
Channel: The Tweaker
Transparency in IR spectrum (950nm)
Transparency in IR spectrum (950nm)
Published: 2015/08/27
Channel: Orion17
Infrared Filter Thickness Myth
Infrared Filter Thickness Myth
Published: 2011/09/23
Channel: Life Pixel
The 3 filters block all visible light below 1st 720nm,2nd  760nm, 3rd 850nm
The 3 filters block all visible light below 1st 720nm,2nd 760nm, 3rd 850nm
Published: 2017/09/20
Channel: HardwareTX
IR FILTER TUTORIAL | How to Work With an Infrared Filter 720NM for Canon, Nikon and Other DSLR
IR FILTER TUTORIAL | How to Work With an Infrared Filter 720NM for Canon, Nikon and Other DSLR
Published: 2015/10/05
Channel: Digital Goja
Photography tutorial: Using Infrared filters | lynda.com
Photography tutorial: Using Infrared filters | lynda.com
Published: 2012/12/20
Channel: LinkedIn Learning Solutions
Infrared Photography with an IR Lens Filter
Infrared Photography with an IR Lens Filter
Published: 2018/02/16
Channel: Brandon Losada
WHEN TO REPLACE THE IR-CUT FILTER ON THE BMPCC
WHEN TO REPLACE THE IR-CUT FILTER ON THE BMPCC
Published: 2017/11/25
Channel: Herman Dulder
Solution to IR Pollution - IR ND FIlter Tests
Solution to IR Pollution - IR ND FIlter Tests
Published: 2016/11/13
Channel: Tom Antos
RPi NoIR V2 Camera vs UV IR-CUT vs Infrared 720nm filters
RPi NoIR V2 Camera vs UV IR-CUT vs Infrared 720nm filters
Published: 2016/06/22
Channel: Andr.oid Eric
testing Hoya UV & IR Cut Filter
testing Hoya UV & IR Cut Filter
Published: 2012/09/25
Channel: e PHOTOzine
Automatic Infrared-cut filter ad infrared LED light switching test
Automatic Infrared-cut filter ad infrared LED light switching test
Published: 2014/12/16
Channel: Amaryllo
How does the IR (infrared) cut filter of a CCTV camera work?
How does the IR (infrared) cut filter of a CCTV camera work?
Published: 2011/02/14
Channel: Dallmeier Electronic GmbH & Co. KG
On-Photography: How To Remove an IR Cut Filter from an Action Camera!
On-Photography: How To Remove an IR Cut Filter from an Action Camera!
Published: 2017/12/11
Channel: On-Photography
Infrared Light Converter 02.mp4
Infrared Light Converter 02.mp4
Published: 2011/02/01
Channel: LucidScience
SJ4000 IR cut filter removed Night vision ( X2 IR 48 LED)
SJ4000 IR cut filter removed Night vision ( X2 IR 48 LED)
Published: 2015/08/02
Channel: jonny alkas
Infrared conversion in Nikon D300 with a self cut Hoya R72 filter
Infrared conversion in Nikon D300 with a self cut Hoya R72 filter
Published: 2018/02/12
Channel: mikeno62
Infrared and You - DIY Science
Infrared and You - DIY Science
Published: 2010/05/14
Channel: bretorium
Hoya IR Cut Filter on Blackmagic Micro Cinema REVIEW
Hoya IR Cut Filter on Blackmagic Micro Cinema REVIEW
Published: 2016/05/13
Channel: Film & Lens Society
Baader uv/IR cut filter demo
Baader uv/IR cut filter demo
Published: 2012/08/23
Channel: ourobouros2k2
Replacing IR cut filter cctv camera | How to solve colour problem
Replacing IR cut filter cctv camera | How to solve colour problem
Published: 2017/05/22
Channel: TITBITS
Color restoration by using different UV-IR Cut filter
Color restoration by using different UV-IR Cut filter
Published: 2011/02/06
Channel: jeff poon
Upgrade your FPV Camera Lens and add an IR Cut Filter to get Saturated Colors
Upgrade your FPV Camera Lens and add an IR Cut Filter to get Saturated Colors
Published: 2016/05/09
Channel: Mile High Multicopters
Infrared camera filter
Infrared camera filter
Published: 2009/06/25
Channel: xxBurnNoticexx
RASPBERRY PI: HOW TO OPERATE AN IR CUT SWITCH EASILY!
RASPBERRY PI: HOW TO OPERATE AN IR CUT SWITCH EASILY!
Published: 2017/04/08
Channel: MrBrindizzle
Rocolax UV / IR Cut filter pollution test BMPCC
Rocolax UV / IR Cut filter pollution test BMPCC
Published: 2016/05/27
Channel: David Ke
CubeCam with IR Cut filter vs without.
CubeCam with IR Cut filter vs without.
Published: 2012/03/18
Channel: WildCherryMarker
Filter test on Pi NoIR Camera 2, IR 680nm, 720nm, 850nm, and UV-IR CUT
Filter test on Pi NoIR Camera 2, IR 680nm, 720nm, 850nm, and UV-IR CUT
Published: 2016/05/06
Channel: Andr.oid Eric
IR Cutoff Filter Test.wmv
IR Cutoff Filter Test.wmv
Published: 2011/11/03
Channel: Spacenut1234
Filter test on Pi NoIR v1 : UV-IR CUT/Hoya R72(720nm Infrared)
Filter test on Pi NoIR v1 : UV-IR CUT/Hoya R72(720nm Infrared)
Published: 2016/05/14
Channel: Andr.oid Eric
Infrared 720nm filter
Infrared 720nm filter
Published: 2014/02/16
Channel: Elliott Round
IR cut filter switching unit for day night camera
IR cut filter switching unit for day night camera
Published: 2017/07/12
Channel: Channel Fujita
New Canon Astrophotography Filter (SkyTech CLS-CCD Review)
New Canon Astrophotography Filter (SkyTech CLS-CCD Review)
Published: 2017/05/31
Channel: AstroBackyard
Mobius IR cut lens removal
Mobius IR cut lens removal
Published: 2015/08/01
Channel: Patrick Coyle
Remove E700 IR Filter
Remove E700 IR Filter
Published: 2017/05/19
Channel: SURE24
IR filter
IR filter
Published: 2008/03/12
Channel: Forssa1
Removing the IR filter from the Nikon 1 S1 system camera
Removing the IR filter from the Nikon 1 S1 system camera
Published: 2015/08/07
Channel: Fredrik Gløckner
IR filter 1000nm the lens has arrived.. the test :)
IR filter 1000nm the lens has arrived.. the test :)
Published: 2016/06/14
Channel: Ufo Joe
Full Spectrum Canon 1100D plus UV/IR Cut Off filter footage straight from the camera
Full Spectrum Canon 1100D plus UV/IR Cut Off filter footage straight from the camera
Published: 2017/06/30
Channel: Remus
Contour Roam IR filter Removed
Contour Roam IR filter Removed
Published: 2015/02/24
Channel: zak2501
IR cut filter glass operations
IR cut filter glass operations
Published: 2017/10/15
Channel: Chuong D
Axton AT7 Illuminator with Samsung SNV-5080R IR cut filter
Axton AT7 Illuminator with Samsung SNV-5080R IR cut filter
Published: 2012/11/16
Channel: voip-ninja
Full Spectrum Canon 1100D plus UV/IR Cut Off filter footage straight from the camera
Full Spectrum Canon 1100D plus UV/IR Cut Off filter footage straight from the camera
Published: 2017/06/30
Channel: Remus
Removal of the IR filter from a Sony NEX5 and conversion to B/G/NIR
Removal of the IR filter from a Sony NEX5 and conversion to B/G/NIR
Published: 2015/02/22
Channel: FlyingMerf
Hot Mirror Comparison, 720nm Infrared and Ultra Violet filters
Hot Mirror Comparison, 720nm Infrared and Ultra Violet filters
Published: 2013/11/02
Channel: John Bodylski
KUPO Hot Mirrors and IR Cut off Filters
KUPO Hot Mirrors and IR Cut off Filters
Published: 2017/08/28
Channel: KUPO media
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
  (Redirected from IR filter)
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Infrared cut-off filters, sometimes called IR filters or heat-absorbing filters, are designed to reflect or block mid-infrared wavelengths while passing visible light. They are often used in devices with bright incandescent light bulbs (such as slide and overhead projectors) to prevent unwanted heating. There are also filters which are used in solid state (CCD or CMOS) video cameras to block IR due to the high sensitivity of many camera sensors to near-infrared light. These filters typically have a blue hue to them as they also sometimes block some of the light from the longer red wavelengths.

IR transmitting/passing filters in photography[edit]

IR transmitting filters, used in photography.

In contrast to the naming convention of optical filters where the name of the filter denotes the wavelengths that are blocked, and in line with the convention for air filters and oil filters, photographic filters are named for the color of light they pass. Thus a blue filter makes the picture look blue. A black filter marginally allows more light in the blue wavelength to pass resulting in a slight shift of the color temperature of the photo to a cooler color. Because of this, the term "IR filters" is commonly used to refer to filters that pass infrared light while completely blocking other wavelengths. However, in some applications the term "IR filter" still can be used as a synonym of infrared cut-off filter.

Unlike the eye, sensors based on silicon (including CCDs and CMOS sensors) have sensitivities extending into the near-infrared. Such sensors may extend to 1000 nm. Digital cameras are usually equipped with IR-blocking filters to prevent unnatural-looking images. IR-transmitting (passing) filters, or removal of factory IR-blocking filters, are commonly used in infrared photography to pass infrared light and block visible and ultraviolet light. Such filters appear black to the eye, but are transparent when viewed with an IR sensitive device.

Since the dyes in processed film block various part of visible light but are all fairly transparent to infrared, dark black sections of any processed film (where all visible colors are blocked) pass only infrared light and are commonly used (layering one over another if necessary for better visual light filtering) as a cheap alternative to expensive glass-backed filters. Such filters can be used both over color camera lenses, and to filter visible light from IR illumination sources. Such filter stock is most easily made available most simply by having any commercial color negative film developed after being fully exposed to light. The leaders of 35mm film are ideal for this, without wasting an entire roll of film. (Some special communication may be necessary in such submission, to ensure that all of the "black" negative film thus produced is indeed returned, and that there is no need to print the color-negative results on photographic paper). In the same way, visually opaque "black" color-positive film emulsions mounted in cardboard, as for routine slide projection, provide inexpensive cardboard-mounted infrared filters. Film sizes larger than 35 mm may be handled in the same way for larger filter production.

For astrophotography, many photogenic targets (such as emission nebulae) are bright in the far red and near infrared. Removal of factory filters increases sensitivity to such targets, and may also increase sharpness, as such filters may also include anti-aliasing filters.

See also[edit]

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