Jeffrey D. Mathias (jeffrey.d.mathias@worldnet.att.net)
Wed, 14 Jul 1999 17:46:13 -0400
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/
This archive was generated by hypermail 2.0b3 on Thu Oct 28 1999 - 21:40:36