U of S | Mailing List Archive | alt-photo-process-l | Re: Lightsource for Gum Bichromates

Re: Lightsource for Gum Bichromates

Thanks Loris!

I've noticed these 40W's myself - but won't the exposure time be awfully long compared to a 125W bulb...?


----- Original Message ----- From: "Loris Medici" <mail@loris.medici.name>
To: <alt-photo-process-l@usask.ca>
Sent: Friday, July 25, 2008 7:55 AM
Subject: Re: Lightsource for Gum Bichromates

My bulbs also are Philips brand. I use 24" (60cm) 40W UBVL tubes. The bulb
number was TLK40W/05 or something like that (/05 is the suffix for actinic


24 Temmuz 2008, Perşembe, 6:17 pm tarihinde, Christina Z. Anderson yazmış:
I use Phillips UVBL tubes for all my gum prints. If I was at home I could
look at the bulb number, but they are blue lights, not the deep Jimmy
Hendrix purple but pale blue/lavender.

----- Original Message -----
From: Bjørn Frostad
To: alt-photo-process-l@usask.ca
Sent: Wednesday, July 23, 2008 4:23 PM
Subject: Lightsource for Gum Bichromates

Since the Phillips HPR 125 apparently has been discontinued, I'll have to
for the next best alternative for making my gum-prints.
But - ....I can't seem to find it........
Any ideas?

Bjørn Frostad, Norway