U of S | Mailing List Archive | alt-photo-process-l | Re: for Marek

Re: for Marek

Well, now I'm confused. Paul said he was following my insttructions on my web site for determining exposure, which call exactly for what Marek is suggesting below except that I use four strips instead of three, and I was trying to figure out how he overexposed so much following my instructions, which I thought should have been pretty straightforward. I thought he was understanding our conversation; his replies seemed to be making sense to me, even though we were both drinking Everclear. But if he wasn't using Stouffer strips, and he wasn't following my instructions, then I don't know how he determined the exposure but glad to know it wasn't something in my instructions that sent him wrong. Either way, my comments in response to the yellow print he posted remain the same: too much exposure, too little development.. Seems pretty uncomplicated to me.

On Jul 23, 2009, at 6:44 AM, Marek Matusz wrote:

This is simple, or at least in my mind.
First foreget the negatives,
Then coat a piece of paper with blue emulsion. Yellow is a terrible way to calibrate the system since you can't see it very well. Take your 21 step wedge and a piece of clear transparency that you are using. Place the wedge on top of transparency and expose 3 strips. 1 minute, 3 minutes and 4 minutes. You should develop until they more or less stop developing, about 30 minutes. Post the results to the alt community, you will get a lot of positive feedback. This really opens your eyes to the understanding of the process.
This will establish a correct exposure/development. It will not change much if you increase strength of your pigment.
As far as negatives, I am printing on 3800 with photo black and yellow at 25% strength with no curvature in QTR. You do want to curve in photoshop to place middle grays where you want them.
I was actually impressed with your last yellow attempt. If your were doing monochromatic gums you would be very close to a sweat spot.

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