Re: Splitting 70mm film and different versions of Aerochrome II IR

[BIELECKJ@xxxxxxxxxxxxxxxxxxxxxxxxxx]

>In a previous IR digest I wrote:"Aerochrome II Color Infrared film is 
available
>in 150' 70mm rolls with and without perforations."
>After talking to several Kodak reps I don't know if this is true anymore. 
 None
>of the reps were able to tell me about an unperforated version.  Does 
anyone kn
>ow if it is available unperforated?
>And lastly, there seems to be 3 different 70mm versions of this Color IR 
film.
> Aerial films made by Kodak.  IN addition to the Aerochrome II Color IR , 
there
>is another film that is similar but has INCREASED IR sensitivity.  The 
third
>70mm film is similar to the second version with INCREASED IR sensitivity, 
but
>it comes on a thinner base so more film can be on one spool. I ordered the
>technical data sheet for these films so I'll keep you updated when I get 
it.
>Sorry for the long post.  Hope you found in informative
>Peace, Rolland Elliott

This was an extremely interesting post.  I never thought it would be 
possible to (practically) split 70mm film in half.  I'm glad I'm wrong.

Kodak publication AS-69 (from their Aerial Film Section) lists Aerochrome 
II 2443 as being available in 70mm X 100 foot lengths.  This is what we 
have and it came perforated.  The rest of the listings for the three 2443 
films Kodak currently produces are all in the 9.5" wide format.

It should be noted that Aerochrome SO-134 and Aerochrome SO-060 are high 
altitude films designed for photography at about 15,000 feet.  They do have 
increased IR sensitivity when compared to the more garden variety 2443.
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