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Re: welcome
>Will you use some kind of loading device, similar to 35mm?
>It won't be daylight loadable in case of Aerographic of course, but
>still.
Yes, we bought a 70mm Alden bulk film loader.
The film just came in before the holidays, so I haven't yet had the time to
load it. I have no experience with loading 70mm, so I'll have to sacrifice
some of our bulk Kodak 70mm VPS before trying the IR. The fun part will
come trying to load the stuff in the dark.
>> The Canadian Forest Service will cut 70mm color IR film to 220 (don't
ask
>> me how), but this is for specialized Forestry use and not available to
the
>> general public.
>
>Baloney, they don't have to provide us with the cut film, only with the
>method! Would you please ask them about how they cut it, and other
>experiences in actual use/shootings? Please? Pretty Please?....;
I haven't talked to the Canadians about this in a couple of years, and I
don't know if I can now. It was my understanding that their forest photo
"division" was disbanded last year due to a lack of funding. I will check
though and get back to the group later on. I can't even fathom how they
cut 70mm to fit 120/220, but it may be that they buy 9" wide aerial color
IR film and cut that to size (probably easier than cutting the sprocket
holes off 70mm).
We have used a couple of rolls of their stuff a few years back with mainly
poor results (mostly due to dumb mistakes on our part). It comes with a
paper leader that has been "grafted" onto the beginning of the film. The
Canadians recommend that you advance the film a few frames beyond normal to
allow for fogging. Proper filtration is essential and we exposed the stuff
at an EI of 160. We sent it back to the Canadians for processing. All our
shots are taken with the Rollei pointing straight down at the forest (we've
cut a hole in the fuselage of our plane). These were among the first shots
we took with our Rollei which, in retrospect, were all flown at too low of
an altitude and with the wrong filtration. Results were interesting but
not real useful. Now that I understand the Rollei and IR film better, I'm
sure our results will improve. I'll let the group know more about our
experiences once we load and expose a few frames of this newer 70mm stuff.
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Topic No. 9
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