New 70mm Aerographic film process AR-5 & E-6 compatable

["ROLLAND ELLIOTT (Quality Assurance Co-Op)" <rolland.elliott@xxxxxxxxxxxxxxx>]

Some one wrote:
 <The new Aerochrome II Color Infrared Film 2443 and Kodak Ektachrome
 <Professional Infrared film EIR are coated with the same emulsions. EIR
 <film will only be available in the one catalog number 35mm format. The
 <Aerial product will be available in the standard formats that aerial
 <products have been available in the past.

I did some hunting around and found out the following information:
Aerochrome II Color Infrared film is available in 150' 70mm rolls with and with
out perforations.  It's also available in 9.5 inch rolls that are 200' and 400'
feet long.  All of the films supposedly use the same emulsion as Kodak's
Ektachrome Prof. 35mm IR film, EIR.  The Kodak rep. I talked to said the film
is process AR-5 just like the 35mm EIR version.  He didn't recommend the use of
E-6 processing for technical applications because the color balance would be
shifted, however, he said for artistic purposes E-6 processing should be fine.
The film will be available in mid July, about a week.  I just placed an order
for one roll of 70mm.  I ordered it from a place called Digital Link of
Atlanta.  770-924-3603.  The Catalog number for a 150' 70mm perforated roll is
:  8985616.  I don't know the catalog numbers for the other formats.

The roll cost me $185 which includes shipping and handling.  My plan is to
split the 70mm roll of film down the middle and bulk load it into 35mm
casettes.  I should be able to get about 60 rolls of 36 exp film out of it for
a final cost of $3.08 per roll of film.  That's a lot cheaper than buying EIR
at $18 to $19 a roll.

The only problem is that the film will only be perforated on one side.  Which
means you will probably have to hand develop it, (which isn't that hard)
A few weeks ago I ran a roll of 35mm film with perforations only on one side
through my Nikon N90s, it didn't go through so smoothly because there is a
roller inside the backside of the camera that has teeth that go into the bottom
and top perforations of 35mm film.  I knew the bottom teeth on this roller were
used to count the frames and advance the film properly.  However the top teeth
didn't seem to do anything but guide the film along as it got used up.
Well I took a chance and removed the top teeth from the roller to see if this
would solve my problem and make the film (that's only perf. on the bottom)
advace smoothly.  I put two rolls of 24 exp. 35mm film (with perf. only on the
bottom side) through my modified N90s.  I was very happy, because the film
advanced fine and my problem was solved.  However, when I tried to load a third
roll of film  into the camera it would not advace the film to frame #1.  I
think/hope this is just a coincidence, my camera is in a repair  shop right
now, but I'll tell you of the results when I get it back.
Does anyone know of a 35mm SLR camera that only needs the bottom side of 35mm
film perforated?  I just might buy one to use exclusively with my split 70mm
film.  Perferably a Nikon?
Sorry for the long post, but I hope it was interesting
Rolland Elliott

Work Phone is 614-772-3537 Home # 614-772-2854
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