Re: Reverse loading HIE film.

[Russ Rosener <rrosener@xxxxxxxxxxxxxxx>]

Rolland Rainbow Elliott wrote:
> 
> Has anyone taken a roll of HIE film, and taken it out of its casette and then
> put it back into another casette reverse loaded, and then shot this film
> through the camera?  This would basically mean that the emulsion side of the
> film would be in contact with the camera's pressure plate.  Since HIE has no
> anti-halation layer, I wonder if the resulting negatives would look exactly
> the same?
> 
> Also there was some talk about a year ago, about wrapping aluminum around a
> camera's pressure plate and seeing if this increased the halation effect, by
> letting more light bounce off the plate and back onto the film.  Has anyone
> ever tried this?  If so what were the results?

I'm not sure this would work very well or accomplish what you wanted it
to. To really get an idea just get some 4x5 IR and load the sheet film
in backwards and expose it. Technically this should make no difference
if the film has no anti-halation layer. HIE has a polyester base which
should make even less impact if shot through. 
	The aluminum foil would likely only cause fogging where the light
reflects back onto the film, much like the dimple pattern caused by
pressure plates on some cameras. Remember that the "Halo Effect" around
highllights is actually a fairly complex interaction of light refraction
and not a simple reflection. Nevertheless, try it and see what happens.


- -- 
Russ Rosener
Washington University, St. Louis
http://home.stlnet.com/~rrosener/Archaic_Cyberspace.html
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