[Leica] Img: False Color Infra Red

[len-1 at comcast.net (Leonard Taupier)]

The IR sensitive digital camera, like the M8 can produce false color  
Infra-Red photos very similar to those produced by Kodak Professional  
EIR film. The process in the M8 is different then the normal b&w  
photos we have been seeing. In the case of false color an IR filter  
is not used. And the photo is not altered or de-saturated. It's as it  
comes out of the camera. Instead of the IR filter used in IR  
photography, two polarizing filters are used instead. At least one of  
the filters must be of the "linear" type used before the auto focus  
era. The procedure is easier with a SLR camera where while looking  
through the viewfinder each of the filters is rotated until the view  
is totally dark. You can do the same thing with a rangefinder camera  
except you fill need to look through the filters off camera and mark  
where the filters are set and then mount the filters on your lens and  
set the filters.

The following photo was taken with an M8 and one linear and one  
circular polarizer. Foliage will turn pink but clear sky will remain  
a vivid blue. The lens was a 28mm f2.8 Elmarit.

<http://gallery.leica-users.org/v/LeonardT/Infra_Red/ 
FalseColor.jpg.html>

<http://tinyurl.com/yputu6>

There is nothing special about this photo. It's just an illustration.

Len