Alex Cummins (ace@codon.nih.gov)
Thu, 21 Jan 1999 07:53:10 -0400
I have just begun doing Cyanotypes and Van Dyke's Brown. However the
winter sun is to variable for me to really work out parameters for
consistent predictable results. I want to make a light box using either
the 18" (15 watt) or 24inch (24 watt??) bulbs. Can anyone tell me how
many bulbs I need in the box to get a decent exposure. What kind ow
wattage I should use. From previous posts I gather I should be using GE
BL not BLB UV lights.
Thank you in advance for your help?
Alex
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