Re: Splitting 70mm film and different versions of Aerochrom

[BIELECKJ@xxxxxxxxxxxxxxxxxxxxxxxxxx]

><pondering mode on>
>Mmm....could it be that those emulsions are so IR-sensitive that the 
>focus shift *does* become visible with anything else than 
>apochromatic optics or small apertures?
>This market should not have a problem with such high end optics,
>which might be very good reason why these emulsions will never be
>available for the consumer market. 
>Does the data sheet cover the issue of focusing differently than for 
>2443?

I saw some pictures of a 9.5" aerial camera a few weeks back at an aerial 
photo seminar put on by the remote sensing specialists at Michigan State 
University.  While I can't comment on the optics, all of the cameras had 
very elaborate vacuum film backs which insured that the film would be held 
tightly against the pressure plate.  Rollei's 70mm back uses the same basic 
type of design.   
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