Re: 70mm IR films

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 15 Oct 96 at 19:05, BIELECKJ@xxxxxxxxxxxxxxxxxxxx wrote:

> 
> 
> 
> >
> >Are you planning to use ordinary (non-aerial) photo equipment?
> >There are only a few systems left that offer 70mm backs: Linhof, 
> >Mamiya 67, Rollei 600x ($$$$, uses Mamiya internals) and Hasselblad.
> >--
> >
> We use a Rollei 6003 and the associated 70 mm back for our aerial work.  
> The camera is mounted in the interior of the plane, pointing straight down 
> through a 8 inch diameter hole.  We've been using conventional C-41/E-6 
> color negative/slide films for the past couple of years and have just 
> purchased several rolls of 70mm B&W and color IR films.  As noted in my 
> previous post, the IR film will be used for forest photography for the 
> Michigan Department of Natural Resources (for whom I work as a Forester).

Another nice contraption you might look into is a special 70mm long roll
back for the Mamiya 67 series (unlike the compact 4.5m backs
from Mamiya itself), made in the US (forgot the name, can look it up
if you want to). Might be worthwile if you swap backs frequently.
Btw, interesting note on those Rollei backs: it seems as if they made 
the mistake of using of-the-shelf parts from Mamiya, in the 
assumption that only a single batch of these backs would be needed in 
a special order. Yet the demand seems to be steady, and they told me 
that if they had known this upfront, they would have designed one 
from scratch. Much cheaper. I also caused some panic there, since 
both Mamiya Holland and Germany weren't sure if the back was still 
being made. The last batch of those 70mm backs in Germany, 3 years 
ago, was for....Rollei....8-))
Lucky for them I got a confirmation on its current availability. Now 
I only need to find a used back, a new one is offensively priced, even 
compared to the Rollei back. 
--
Bye,

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      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]

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Topic No. 14