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Response to tech pan 120 hypered
from Fritz M. Brown (brownf{DHWTOWERS/TOWERS3/brownf}@dhw.state.id.us)
I used to use hypersensitized Tech Pan for photomicrography when I was in grad school. We hypered it in nitrogen/hydrogen gas mixture which I think is how the Lumicon stuff is hypered. We developed in D19 for (I believe) 4 to 5 minutes. Generates a really contrasty negative.
(posted 9272 days ago)
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