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Jim;
To answer your question: yes and
no. I have only processed tech pan in HC110 dil B to make B/W slides from high
contrast negs taken with the Schmidt. In HC110 dil B for 4 minutes, your
contrast index drops from 2.5ish to 1.2, and speed drops from around 160 to 100
ASA. Expect longer shots with finer grain and much lower contrast. All those
17th mag galaxies will probably fade out too.
Until very recently I considered
the B/W slide or print the final destination of a tech pan image, and have
always processed for maximum information. By using HC110 I think that you will
lose detail in the fainter parts but on bright stuff like M8 or M17 it may work
out well in a stack. Have you tried reducing the contrast of the tech pan image
before you slip it in the stack? I had good results that way. Using HC110 may
still not be low enough contrast for a colour image. If you could match the
contrast index of TP to that of the colour film, you might have a
winner.
John Mirtle
Calgary, Ab. Canada
(tech-pan country!)
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