Re: Photographing trees in autumn with Konica IR

[BIELECKJ@xxxxxxxxxxxxxxxxxxxxxxxxxx]

>George - I photographed two rolls of Konica IR 750 through red filter
>(B+W 091) and my results show, that also yellow and red leaves are
>white (or very light grey) in the pictures. So I think that all
>leaves, as long as they are on the trees, are white in the pictures.
>I have several pictures of trees with different colored leaves, and in 
>the print I can not clearly see which tree has green leaves and which
>has yellow or red. Maybe there still are some differences.
>(One difference is that they are different trees: birch, aspen, maple...)

Very true.  The reason that a lot of Natural Resource work is done with B&W 
IR is because of the film's ability to differentiate between tree species. 
 While Aspen and Hard Maple are both hardwoods, they have entirely 
different infrared signatures (Aspen being gray and Maple being white).  
Conifers will show up as a dark gray/black.

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Topic No. 10