Re: Samples of Pd with Na2
Kerik... It did seem a bit wet when I brushed it on...and you're absolutely right. I usually use .5ml for a 4x5 print (pure pd, amm citrate), but lately that has seemed a bit less and got a better print last time with .75ml. I extrapolated from that figure, which gave me 4.5 ml, but I knew that that was way too much. So I knocked it down to 4ml, knowing that I'd rather err on the side of more solution...3ml is definitely what I should have used. I use a 2 1/2" DaVinci Cosmotop brush, a $40-50 synthetic flat watercolor brush, which I love (used a Dick Blick 40% off coupon!)... Paper is Fabriano EW, acidified in oxalic acid 1%, 3 minutes...pre-exposure humidity only Paul ----- Original Message ----- From: <kerik@kerik.com> To: <alt-photo-process-l@usask.ca> Sent: Thursday, March 19, 2009 9:42 AM Subject: Re: Samples of Pd with Na2 Paul, That color shift is expected. I would also attribute the smoother tonality to the potassium oxalate developer. What paper are you using and what are you coating with? With a paper like Platine or COT320 and a Richeson brush, that's more sensitizer than you should need. You should be able to coat a 9x14 area with about 1.5 ml each of Pd and FeOx. Kerik www.kerik.com Original Message: ----------------- From: Paul Viapiano viapiano@pacbell.net Date: Thu, 19 Mar 2009 09:08:50 -0700 To: alt-photo-process-l@usask.ca Subject: Re: Samples of Pd with Na2 Yeah, Neal...nice! Kerik, I ran a few test strips yesterday before doing the 11x15 (9x13.5 image) and the pure Pd w/o NA2 was slightly warmer than the one with it. Also, I could've run the print w/o NA2, but the one with it gave it just that slight bit of punchiness it needed, seeing that the image goes from dark areas of foreground to a hazy aerial perspective in the mountain. The PO (or maybe it was the NA2) gave me a smoother print than I had been able to make with pure Pd and amm citrate developer. The biggest worry I had was coating a larger-than-my-usual print. I used 4 ml of solution plus 2 drops 10% and 1 drop 2.5% NA2. I extrapolated this from my test strip which used .5ml of solution and 1 drop 2.5% NA2. Scan to come... Paul ----- Original Message ----- From: <kerik@kerik.com> To: <alt-photo-process-l@usask.ca> Sent: Thursday, March 19, 2009 8:46 AM Subject: RE: Samples of Pd with Na2 Neal these are looking good. The colors seem to be all over the board, though. I presume this is the result of scanning and adjustments rather than the actual color varitions in the prints. I'm surprised you're seeing a change in exposure time and smoothness with a relatively small amount of Na2. That has not been my experience. A slight shift from warm is expected. Kerik www.kerik.com Original Message: ----------------- From: Neal Wilson wilsonneal@hotmail.com Date: Thu, 19 Mar 2009 10:03:07 -0400 To: alt-photo-process-l@usask.ca Subject: Samples of Pd with Na2 I haven't posted samples of my work previously, but thought, given the recent talk of Na2 with Palladium, developed in PO, I'd post a few links, as this is my process. I used to work with the Weston, but now use Arches Platine. Some of these were also printed on COT 320. I struggled for a long time with DR, and only recently feel I've gotten a good effective speed for my film (now FP4 after a year with HP5 and two years with TriX), and my developer (HC110, Jobo tank, Beseler motor base), and I can run with a very, very minimal application of Na2. Na2 is great, but with much more than a drop of 10% in a mix of 16 drops each of Pd and FO (for an 8x10), it shifts the color, it makes for less smoothness, and it impacts exposure time. I feel like zero Na2 is also not a good formula for me. Seems like the coating is more even, color is better. So, these are some examples of 8x10 portraits. I also shoot still life and hope to scan and post some of these soon. http://nealwilsonstudio.com/sophie.html http://nealwilsonstudio.com/PlatinumBoy.html http://nealwilsonstudio.com/Dreaming.html http://nealwilsonstudio.com/shaman.html http://nealwilsonstudio.com/Nauset_Guards.html http://nealwilsonstudio.com/friends.html http://nealwilsonstudio.com/jim.html http://nealwilsonstudio.com/shore.html Thanks for any feedback. Neal -------------------------------------------------------------------- mail2web LIVE - Free email based on Microsoft® Exchange technology - http://link.mail2web.com/LIVE
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