Talk:Infrared photography

message: I have no real source (nor expertise) for this other than the memory of a college class I had, but I believe the effect with trees and water is known as the "Wood Effect" after its discoverer, which might be useful info for the article. -152.160.58.186 05:56, 27 November 2006 (UTC)
replies: text: Good memory.  I found it justified via GBS: . Dicklyon 06:24, 27 November 2006 (UTC)
replies: text: A little more research reveals 'Wood' was Robert W. Wood. See UI there and [] -nbach 07:25, 28 November 2006 (UTC)
thread_title: Wood effect

message: According to the current article,  "A sharp infrared photograph can be done with a tripod, a narrow aperture (like f/22) and a slow shutter speed without focus compensation,..." The principle here is that increasing depth of field by stopping down can compensate for the focus shift that results from focusing a non-IR corrected lens in visible light, then shooting in IR -- but one must be careful. Stopping down to f/22 will result in a loss of sharpness from diffraction. Therefore, if the situation permits, a better solution is using a mid-range f-stop, say 5.6., 8, or 11, and making a series of exposures starting with the visible light focus and working through a series of exposures at focus points around the focus point for visible light. If the focus points are marked, the focus point for the sharpest image will serve to calibrate the lens for IR. If the object of the exercise is calibrating the lens for IR, the focus point should be infinity -- a distant skyline works well; so do stars or distant point sources of light.  —Preceding unsigned comment added by Pixeljim (talk • contribs) 07:25, 11 September 2007 (UTC)
thread_title:  Infrared focus 

message: The section stating that there are no digital cameras that can reproduce the Ektachrome Color Infra-Red (EIR) film effect with out taking multiple exposures with filters and over laying them, is incorrect/misleading. See, 
http://www.dpreview.com/forums/post/55320038,
http://www.dpreview.com/forums/post/38437796,
http://www.dpreview.com/forums/post/55311029,
http://www.dpreview.com/forums/post/55339735,
http://www.dpreview.com/forums/thread/3550826,
http://www.dpreview.com/forums/thread/3597760,
http://www.dpreview.com/forums/thread/3347684
and http://www.foveon.com/article.php?a=67.
The Sigma Foveon X3 Sensors are laid out differently than conventional Bayer array digital cameras. They have the color pixels layered on top of each other, like conventional film and take advantage of the absorption properties of the silicon they are made of to separate colors. Blue green and red all penetrate to a different depth into a silicon wafer and so pixels buried at different depths at each photo site are able to separate the color intrinsically, without color filters. Each photo site, collects all three colors. This makes for sharper images than your normal Bayer array camera with the same number of photo sites, giving it a higher angular resolution, unmarred by the anti-aliasing going on in a standard Bayer array camera. This also means that once the Band pass filter that blocks UV and IR light has been removed from the camera, IR light will be interpreted as red light and only affects the other channels via white balance. This is attributed to the lack of color filters and intrinsic color separation properties designed into the sensor. Once a custom white balance is set, the camera behaves much like the Kodak color IR film. No yellow filter is needed, as blue and green light are still interpreted as blue and green by the camera sensor. Red and IR are mixed in the same channel. Color rotation in post processing can achieve a closer result to the old EIR film. The same dark, or vivid blue sky and red leaf effects are available with out much processing.
Jzierten (talk) 20:46, 1 April 2015 (UTC)
replies: text: Common myths are not a good topic for wikipedia.  Film is not a good IR filter.  Dicklyon (talk) 16:21, 27 January 2009 (UTC)
thread_title:  Digital Infrared Pictures 

message: There is no currently available digital camera that will produce the same results as Kodak color infrared film although the equivalent images can be produced by either careful filtering with a UV/IR filter such as a U-300, 18A or BG-3. Or created by taking two exposures, one infrared and the other full-color, and combining in post-production.
To 
There is no currently available digital camera that will produce the same results as Kodak color infrared film although the equivalent images can be produced by either careful filtering with a UV/IR filter such as a U-300, 18A or BG-3 or created by taking two exposures, one infrared and the other full-color, and combining in post-production.
89.123.197.192 (talk) 19:44, 13 February 2009 (UTC)
thread_title:  Fix'd 

message: We Can Walk
http://www.youtube.com/watch?v=JLMd-626DcA
Death In Vegas - Dirt
http://www.youtube.com/watch?v=2QWKt1YlquA
about a minute into the video
Only You / Martha and the Muffins
http://www.youtube.com/watch?v=6nJTtM3J7YQ
about 45-60 sec into the video
Marilyn Manson - The Dope Show
http://www.youtube.com/watch?v=bP8eNye4J_M
I'm thinking of making a list.Civic Cat (talk) 17:37, 11 November 2009 (UTC)
thread_title:  Do these music videos make use of infrared photography? 

message: Could someone do a section on this?  In these "green" days, I think home-owners would appreciate being able to photograph heat-leakage from their homes.  I am not qualified to do the section.
Just a thought...62.57.50.138 (talk) 16:08, 9 January 2010 (UTC)
replies: text: I'm sure you'll have some good material to contribute, though a small number of thermal images can go a long way.  Also you're in the wrong article.  Perhaps this one should discuss wavelengths a bit more, so everyone will understand more clearly that it is about the use of near-infrared, which is dominated by effects of absorption and reflection just as with visible light, except the patterns of absorption and reflection are different.  Thermography is the article about far-infrared photography, which is dominated by radiative effects, and Thermographic camera is about the hardware.  You can probably contribute best there.  Jim.henderson (talk) 15:00, 29 November 2010 (UTC)
thread_title:  Infrared photography of homes to confirm insulation effectiveness 

message: The article gives the possibly incorrect impression that Ilford invented IR-sensitive film in the early 1930s, and that Kodak and others followed several years later.  I believe that is in correct.  I was recently reading a 1932 paper on infrared spectroscopy, inwhich they make note of Eastman Kodak's new infrared film.  The development of panchromatic dye-sensitized film took place somewhat incrementally in the early 20th century.  Someone should look into when various companies actaully released products, to give more complete information. DonPMitchell (talk) 20:38, 26 May 2010 (UTC)
thread_title:  History 

message: Correct me if I am wrong, but glass lenses reflect almost ALL of the infrared waves that hit it, as does glass in a window. As such, true IR cameras use iridium lenses. What exactly are the "infrared" settings on a consumer camera, anyway? Fluke, Flir, Extech, and a host of other companies make actual IR cameras. Anyone want to weigh in here?
CincyBuyers (talk) 20:40, 27 November 2010 (UTC)
thread_title: Invitation to discussion on TRUE infrared cameras

message: The "History" section of this article states that "KODAK AEROCHROME III Infrared Film 1443 is their sole remaining infrared film".  I think that the article should make it more clear that other manufacturers are still producing B&W IR films.  I know that this mentioned at the end of the section on "Black-and-white infrared film", but I believe that this information could be made clearer by either a)mentioning its availability in the history section as well;  and/or b)creating a sub-section in the "Black-and-white infrared film" section called "Availability".  Such a sub-section was created for the "Color infrared film" section and I think that it works well.  Creating one for the B&W section would also create symmetry between the two sections.  The last paragraph of the B&W IR film section could be moved to the availability sections.  Does anyone have any thoughts on whether this should be done? Marshallc8 (talk) 18:13, 18 September 2011 (UTC)
thread_title:  Availability of Black and White IR Film 

message: 'found this bit on the topic : http://egsc.usgs.gov/isb/pubs/factsheets/fs12901.html --Jerome Potts (talk) 15:23, 13 June 2013 (UTC)
replies: text: Unfortunately it might not be because you may have a conflict of interest if you work in color infrared. Also, a link to your website may be considered advertising. Thank you. Sungodtemple (talk) 14:41, 23 February 2021 (UTC)
thread_title:  Color infrared 

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thread_title:  External links modified