[pure-silver] Re: Red Filter
----- Original Message ----- From: "Tim Daneliuk" <tundra@xxxxxxxxxxxxxx> 
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Thursday, April 30, 2009 1:12 PM
Subject: [pure-silver] Red Filter
I am itching to try the Fotochemika paper from Freestyle. But ... it requires red safelighting. I have two 10x12 safelights (the nice Kodak ones) in my darkroom but am having trouble finding red filters to fit them (I'd prefer the old school glass ones as opposed to the newer acrylic) ... well, I can't seem to find them at reasonable prices. 

Questions:

1) How red is "red"?  1A, 0A, Ilford 906 ...?
2) Any idea where to find decent used 10x12 glass filters for these 
  safelights?
3) Can the red also be used with modern VC and graded papers so I don't have to keep swapping back to the OCs when I change papers? 

Thanks,
--
Try running a fogging test using your current lights. You may want to use smaller bulbs in the lamps. I think Kodak still has the test in their on-line technical literature, otherwise I have it (if I can find it). If the OC lamp does fog I agree with those who suggest laying a sheet of Rubylith over (under?) the regular filter. What Kodak calls a dark red safelight is safe for any orthochromatic or color blind material but is less visually bright than amber for the same actual light level and many find them uncomfortable. 


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@xxxxxxxxxxxxx 
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