Re: Where can I get the contrast!?


Edward Meyers (aghalide@panix.com)
Thu, 15 Jul 1999 09:28:48 -0400 (EDT)


Have you tried using one of the Heliopan power-line filters? Ed

On Thu, 15 Jul 1999, Dan Koons wrote:

>
> tech pan would be even better if it wouldn't show the power lines or
> poles:) dan
>
>
> >FotoDave@aol.com wrote:
> >> ...
> >> But if you want your original negative to have that much density range, you
> >> might try tech pan film or even lith film processed for low continuous
> tone.
> >> ...
> >
> >I have tested Kodak Tech Pan film in the past and found a serious
> >drawback. In comparison with Kodak Tri-X, I made an image with power
> >lines in the distance (4x5 size, developed with HC-110). With a loop,
> >the detail in the Tech-Pan looked better and the Tri-X looked grainy.
> >However in the Pt/Pd contact prints, the power lines were clearly
> >visible from the Tri-X and about disappeared from the Tech-Pan. This
> >has something to do with the grain producing sharpness, transfer
> >functions, mathematics, and science. Bottom line is: I would recommend
> >against the use of Tech-Pan film for Pt/Pd printing.
> >
> >--
> >Jeffrey D. Mathias
> >http://home.att.net/~jeffrey.d.mathias/
> >
> Dan Koons
> Southwest Medical Center
> Radiology Department
> PO Box 1340
> Liberal, Kansas 67905
> 316/629-6286
> Fax: 316/629-2435
> E-Mail: dkoons@pld.com
>



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