Re: Techpan with deep red filters...

[Nate <nkeith@xxxxxxxxxxxxxxxxxxxxxx>]

The UHC article was a two part series in the March and April 1993 Shutterbug
periodical.  The author recommends an initial EI of 125 for 35mm and 120,
and 64 for 4x5 sheet.  The other recommendation (in addition to EI and red
or orange filtration) is stock D-19 @ 68 degrees F for 4 minutes.

If anyone is interested, there are three samples under the "Black and White"
category at www.pioneerplanet.infi.net/~nkeith.  They are the first three
images.  As Mr. Krebs mentions below, D-19 and Techpan create nearly lith
images with little tonal range.

Nate


P.O.V. Image Service wrote:

> Been there, done that...
>
> Extremely reduced tonal range.. Anything that is red will be read as
> white by the film (make-up and composition must be altered
> accordingly)..
>
> Seem to remember rating it at about 800 ISO metered in studio... Was
> developed in D-19 (1-1) for about 4 minutes... Negatives will be dense
> and extremeley contrasty, almost lith-like.  24 X 36 enlargements were
> nearly grainless.
>
> There was an article in Shutterbug back in 91, 92, or 93 about it.  It
> was a teo issue piece on Ultra High Contrast Photography.  It is a great
> piece of source material on this. I found the numbers in the article for
> development times in D-19 OK if I rated the TechPan one stop faster than
> the article stated.  Also... as many do with HIE, bracket a stop in each
> direction.
>
> All in all, I got some awesome imagery..
>
> Keith Krebs
> --
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- --
Nate Keith
Eden Prairie, MN
USA

Visit NatelanD ImageS at http://www.pioneerplanet.infi.net/~nkeith


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End of Infrared-Digest V0 #785
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