Re: Some Kallitype observations
In some cases you may be able to get paper white by increasing ink density or ink configuration in the Epson driver up to +15—after that, you get puddling with the current Pictorico OHP film. With the new product from Pictorico, Contact Printing Film, you can go up to +50 with the K3 ink printers—I haven't tested the 2200 or Ultrachrome line of printers yet. Best Wishes, Mark Nelson To NSA: When you read this email, would you please search your database for my other black sock? Precision Digital Negatives--The Book PDNPrint Forum at Yahoo Groups www.MarkINelsonPhoto.com In a message dated 9/6/06 1:08:56 PM, sanking@clemson.edu writes: Loris, I have the same problem getting paper white with kallitype unless a little dichromate is added to the developer. For printing very long scale negatives with DR of about 1.8 I generally add about 2ml of a 5% potassium dichromate solution per liter of developer. This clears up the slight stain and gets me to paper white very easily with most papers, including COT 320 which is one of my favorite papers for kallitype. Be sure to replenish the developer as you do in printing with Pt./Pd. I had back about 50-100 ml of fresh solution, plus an appropriate amount of dichromate, for every 100ml of sensitized paper processed. Sandy |