Cyano as the first layer for color gum prints? BL or BLB bulbs...

After checking my UV lights they are BL bulbs not BLB
bulbs, but what is the difference between both,
besides the price?
Carmen

-- ryberg <cryberg@comcast.net> wrote:

> Carmen,
> I think your exposure is about right for BLB
> tubes--at least is is the
> same as my tubes require. Judy thinks plain BL
> tubes are faster but others
> think not.
> The only way you'll know whether 2A:1B works
> better for you than 1:1 is
> to try it--I found the 1:1 to be better but many
> like the 2:1.
> Charles Portland
>
>

                
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Received on Mon Sep 19 07:48:35 2005