BL vs BLB tubes for cyanotype

From: ryberg ^lt;>
Date: 11/14/05-05:14:58 PM Z
Message-id: <000201c5e971$3bd7c5a0$6500a8c0@computer1>

My BL tubes arrived today! They replaced the BLB tubes I have been using.
I find an enormous improvement. Same paper, same sensitizer (classic 1:1),
same fixture (except for the bulbs), same day. Old exposure 15 minutes. New
exposure 3 minutes.
Charles Portland OR
Received on Mon Nov 14 17:15:36 2005

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