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The Wonderful World of Kodak IE


  • From: klycea@xxxxxxxxxxxxxxxxx (Adam-HALPID Klyce)
  • Subject: The Wonderful World of Kodak IE
  • Date: Wed, 31 Jul 1996 11:07:08 -0700

     Hi folks, thought you might be interested:
     
     All info. from Kodak Publication N-17:
     
     "...Unlike the usual color film, the three emulsion layers
     of this infrared film are sensitized to green, red, and
     infrared rather than to blue, green, and red. A yellow 
     filter is used to withhold blue to which these layers are
     also sensitive. When processed, a yellow positive image is
     produced in the green-sensitive layer, a positive magenta 
     image is produced in red-sensitive layer and a cyan positive
     image is produced in the infrared sensitive layer.
     
     Blue can be formed in the transparency even though blue has
     been excluded from the image by a yellow filter. Wherever
     Magenta and Cyan are combined in the absence of yellow, 
     blue will result. (Note that the blue produced is not 
     related to any blue objects in the scene since this is a 
     "false-color" film.)
     
     Numerous other colors can be formed, depending on the 
     proportions of green, red, and infrared reflected or 
     transmitted by the subject. As an example, healthy leaves
     record red because they are "bright" in infrared; this
     produces a light toned Cyan image which allows red from the
     other layers to predominate."
     
     
     Modified Color Renditions (With a Kodak Wrattan Gelatin Filter No. 12 
     <Deep Yellow> over the lens):
     
     Healthy, deciduous, green foliage - Red, Magenta
     Diseased or deficient foliage - Greenish, Bluish
     Badly stressed foliage - Yellow
     Conifers - Dark Purple
     Evergreens - Red - Brown
     Some Blue Flowers - Yellow
     Red Rose - Yellow
     Sooty Mold on Plants - Black
     
     Blue Sky - Sky Blue
     Buff Seashell - Orange
     Iridescent yellow feather - Blue
     Mounted Goliath Beetle - Blue
     Some Green Dyes - Magenta
     Some Green Pigments - Purple
     Some Black Cloth - Dark Red
     Dolomite Limestone - Gray - Brown
     Flourite Crystal - Bluff
     Khaki Cloth - Orange-Red
     
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     
     I once photographed a billiard table, with an arrangement
     of fresh Ivy leaves and White Carnations on top, illuminated
     solely with candle light (three candles to be exact.)
     
     Off-hand I can't remember how anything turned out except 
     that the Pool table's felt was blood red. Hmmm.....
     
     -Adam
       

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Topic No. 5