Kodak High Speed Infrared has no anti-halation layer, which in part
contributes to it's nice gauzy-glowy feel. I took a class a while back
where we used HEI and a few of the folks forgot to read the instructions and
skipped using the #25 red filter - the result was a somewhat diffuse,
glowing effect, very little IR effect in some shots. It's pricey and
demanding in terms of how you handle it, but HEI without a filter might give
you the old fashioned you mention.
FWIW - the absence of the anti-halation layer in Kodak HEI is a big part of
what makes it so difficult to handle. I've heard people say that the IR
radiation is better able to penetrate the fuzzy seal on the film canister,
which it probably is, but the real problem with HEI is 'light piping" by the
film caused by the lack of an anti-halation layer. The exposed leader for
the film transmits light, much like a fiber optic, into the canister where
it corrupts the unexposed film. I once messed up and accidentally subjected
a frame in the middle of a roll of HEI to a very long exposure. It not only
ruined that frame, but wiped out the adjacent frames and sent light patterns
echoing through both ends of the film - a pretty dramatic example of the
light piping effect.
FWIW - I have not noticed similar effect with Konica IR 750 or Ilford SFX -
both of which appear to have an antihalation layer.
- MCC
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Mark Cassino Photography
Kalamazoo, MI
www.markcassino.com
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----- Original Message -----
From: "Shel Belinkoff" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Sunday, May 29, 2005 1:35 PM
Subject: Getting That Old fashioned Glow
Before anti-halation backing, it was easy to get a nice glow around white
or bright objects in a scene. I've not had any luck recently when trying
that with the contemporary B&W films. Any suggestions on how to do this
(outside of Photoshop and Digital Trickery)?
Shel
