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Old May 18, 2010, 6:18 PM   #1
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Default New Challenge -- May 19 - June 1 -- Infrared

You were warned a month ago that this was coming!! Well...here it it!

There are some beautiful effects that can be created through the use of infrared photography.

There are two type of infrared photography. The first type can only be achieved with infrared sensitive film in a film camera. This film is sensitive to heat and records the heat present in a scene. Digital cameras are not capable of doing this. The second type records the infrared light reflected from a scene. Some (not all) digital cameras are capable of this technique.

To capture a reflected infrared image, you need an infrared filter. This filter filters out all visible light and only lets infrared light through. I use a Cokin 89b infrared filter. If your camera does not support infrared images or you haven't purchased a filter, see below where I describe some techniques you may be able to use in your editor to simulate infrared images.

I will describe the technique I use with examples and then give a list of links to articles on digital infrared photography. I will also show some examples of editor techniques that Paint Shop Photo Pro X3 has in its repertoire. I suspect Photoshop and other editors will have something similar.

The biggest problem with an infrared filter is that you cannot see through it. Note--A good sturdy tripod is highly recommended for this procedure.
  1. Set your camera up on the tripod WITHOUT the IR filter.
  2. Compose your shot and lock everything in position.
  3. Shoot a color shot for reference.
  4. Without changing anything, carefully attach the IR filter. As I said before, you won't see anything through the viewfinder or on the LCD screen.
  5. Now shoot the image. You are shooting blind at this point so DON'T move anything.
  6. Since the resulting IR image may be rather dark, you may want to now set +0.5-1.0ev exposure compensation and shoot again.
That completes the camera part of the job. The rest takes place in your editor.

  1. Download the color and all IR images you shot.
  2. Load the first IR shot into your editor. It will be various shades of red and black and may be dark.
  3. Now do a split channel to RGB. This generates three BW images labeled red, green, and blue. The green and blue images will probably be black and can be discarded.
  4. The image labeled "red" is the one we want. If it is too dark, either lighten it with your editor or select another IR image, if you shot more than on.
Voila, you now have your reflected infrared image in BW. Your results will vary depending on the subject of your shot. Plant material will come out the brightest with tree leaves frequently coming out white.

If you don't have an IR filter or your camera doesn't support IR photography, check the "effects" menu for something like "infrared film" or if your editor supports scripts, check the supplied scripts for an infrared script. Neither of these is as good as using a filter but may you some interesting results.

(continued in next message)
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Old May 18, 2010, 6:26 PM   #2
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Just ordered some efke 200iso infrared film
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Old May 18, 2010, 6:30 PM   #3
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Here are some examples that show the techniques I described:

First, is the color shot to start the process:



Second, is the IR shot using the Cokin IR filter:



Third, is the infrared BW image created with the split channel procedure. I have lightened it a bit.



Here is the original shot with the PSPP infrared filter applied to it. In my opinion, it is not as good as the previous shot.



Lastly, here is the result of running the original photo through the PSPP infrared script. I think the result is horrible!



Well that's the end of my picture show. Here are the links I promised.
Please place Infrared in your subject line.
Thanks and enjoy,
Cal

http://www.nature-photography-centra...al_photos.html
http://www.nature-photography-centra...otography.html
http://www.tedfelix.com/IR/
http://www.wrotniak.net/photo/infrared/
http://www.bermangraphics.com/press/infrared.htm
http://echeng.com/photo/infrared/tutorial/
http://www.dpfwiw.com/ir.htm#handle
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Old May 21, 2010, 9:40 PM   #4
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AAAAHHHHHH, my film isnt going to be here for a week, and ill need to shoot 36 ep in a day to get it developed in time to scan in

this may be a close one for me, if i dont make it, ill still show off the film
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