[pure-silver] Re: OA Kodak Safelight filters



Hi Claudio,

Thanks for the reference to the site.
Am I missing something but I fail to see a difference between OA and OC; I do contact prints with OC filters. on my safe lights. From the info, an OA filter would be just as good, or is there a nuance that I am missing???? Could I just as well be printing under an OA filter? 

OA

        

Greenish yellow

        

Black-and-white contact and duplicating materials, projection films

OC

        

Light amber

        

Contact and enlarging papers


Cheers,
Bogdan

Claudio Bonavolta wrote:


Description of the Kodak codes:
http://www.kodak.com/global/en/professional/support/techPubs/ti0845/ti0845.jhtml

For ortho material that requires a red safelight both OA and OC will fog your 
paper.

Claudio Bonavolta
http://www.bonavolta.ch

----- Message d'origine -----
De: Bogdan Karasek <bkarasek@xxxxxxxxxxxx>
Date: Thu, 28 Aug 2008 10:59:54 -0400
Sujet: [pure-silver] OA Kodak Safelight filters
À: pure-silver@xxxxxxxxxxxxx


Hello,
Can someone tell me under what circumstances one would use Kodak OA safelight filters?
I have seen instructions for printing paper that indicate use of a red safe light..... would that be a OC or OA filter???? 

I do strictly B+W and all my safe light filters are OC.

Cheers,
Bogdan

--
________________________________________________________________
Bogdan Karasek
Montréal, Québec                     bogdan(at)bogdanphoto.com
Canada                               www.bogdanphoto.com

                   "I bear witness"
________________________________________________________________ 

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--
________________________________________________________________
 Bogdan Karasek
 Montréal, Québec                     bogdan(at)bogdanphoto.com
 Canada                               www.bogdanphoto.com

                    "I bear witness"
________________________________________________________________ 

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