Re: acetone

Sandy and Howard,

I noticed that you use half the sensitizer that I do.

What changes in the print would I see (contrast/exposure), if everything
else is kept constant and I used 15ml of sensitizer rather than 21ml for an
8x10?

Would I pick up some deeper penetration of the UV due to less Ammonium
dichromate due to less volume used (thus less UV blocked by the yellow of
the Am. Dichromate)?

Many thanks,

Vaughn

PS Dick's latest post arrived as I was composing my questions. The method
"perfected" by Howard seems to suggest that the amount is not critical --
but perhaps I am wrong on this if Howard times his sensitizing and controls
amount that way. Or perhaps the gelatin absorbs as much as it can and that
gives consisantcy. Or is it strickly a matter of concentration -- not
volume?

Perhaps the larger amount of sensitizer I use helps reduce streaking?

So many variables!!!!!
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Received on Fri Dec 22 10:03:59 2006