RE: New HIE Problem (Lines)

[Theo Benson <TBenson@xxxxxxxxxxxxx>]

You're on the right track, David, but I had to comment about the Konica "IR"
film.

> With Kodak HIE, from what I've heard, the metal canister is NOT lightsafe.
> 
	[Theo Benson]  The canister is safe, as all metal is light-tight (at
least until we develop Star-Trecky stuff like transparent aluminum (that's
aluminium to everyone outside the U.S.). It's the felt trap that is not
light-tight. In a pinch, you can load or unload Kodak HIE in subdued light,
but plan on losing the first few images.

> Konica's is said to be less sensitive to loading in subdued light (while
> HIE is said to require TOTAL darkness), probably because its light-trap is
> better - this also means there probably isn't a problem with having the
> canister outside of the plastic container.
	[Theo Benson]  Konica's light trap is the same as everyone else's.
The difference is that Konica is not very sensitive into the IR range. I
have a colleague who shot a whole roll with a #87C filter, and the entire
roll ended up as unexposed! After much discussion with Konica, it was
reluctantly revealed that the IR range is "quite limited," and the #87C,
which cuts-off very well below the IR range, was keeping out all the light
the Konica film could respond to.

	Admittedly, I haven't used Konica film yet, but I plan to in my
Mamiyaflex (only because HIE doesn't come in 120).

> David
> 
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End of Infrared-Digest V0 #714
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