----- Original Message ----- From: <[EMAIL PROTECTED]> Subject: Re: Let's talk darkrooms, again
> Paul... > > I have had navajo white walls ans ceiling in my last setup and I never fogged > any paper. > > The test for whether you're fogging paper is the old quarter test: Take a > piece of paper out with the safelight on and put it in place on your enlarger > baseboard. Put a quarter on the paper and wait a few minutes. Develop the > paper...if there's a shadow where the quarter was move your safelight farther > away until the shadow disappears...it's that simple. Errrmmmm, not quite. Expose the paper to it's threshhold exposure value, then do the coin test. The reason for the pre exposure is to ensure that the safelight won't fog exposed paper, which is what you are working with after the first few seconds of exposure. William Robb - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .

