Andre Langevin wrote:
> Next year, I may have to
> take photos of mountain sides in a way that would permit
> identification of bamboo fields.
If you can shoot other than wide open, DOF will be your friend.
Especially if the discrepancy between the ideal correction and
the correction marked on the lens is small, and distances are
kind of large.
> Another problem related to IR photo is that you may not be able to
> transport IR film through airports without damage from inspection.
> The first and last time I had an IR film with me, it was visualy
> inspected at the airport, a second before I could do anything about
> it.
When I've flown (within the US, which makes a difference) with
IR film, the inspectors have accepted that the cannister was
not to be opened, and just shook it. The time I flew post-9/11,
I told them that they could open it and feel it in the dark if
they had someplace dark to do so, and they declined.
> Canister was opened, and I guess, film was then unusable.
Maybe, maybe not: my second roll of IR, I was using a coat
as a makeshift changing bag around noon. I fumbled and let
some light under the coat, and it fogged the first 1/3 of
the roll (this was Kodak HIE, BTW), with vertical stripes
down the centers of the frames. The last 2/3 of the roll
was okay. So part of that roll might have still been good.
(The problem, of course, is that you don't _know_, so you
can't trust it.)
> may be safer in your luggage... or worse.
I'm betting much worse.
-- Glenn
