Roger, I agree that this topic has relevance for the list, as this is a hybrid process. I expose with a 10d, and formerly printed to 1160 BO or Quadtone. While I love the tones provided and the ability to print on art papers, I wanted a quality lustre surface that did not require spray. I don't know about most of you, but I've never been able to spray completely even and the print always look "sprayed." Lith redevelopment is purely experimental. On page 106 of Tim Rudman's "The Photographer's Master Printing Course," he refers to the process as being successful when applied to papers that are initially developed in lith chemistry - but not when processed by conventional methods. Lith development is highly dependant on the paper used. Those that work best are papers that are not developer incorporated (which many RC papers are). I have no idea if the paper from mpix.com is developer incorporated, so I am not certain if lith redevelopment will work correctly. I do know that they use Polymax as their developer. According to Rudman, the steps involved are quite simple and can be performed in daylight. First, bleach the print to completion in any ferricyanide/bromide bleach utilized in sepia toner. Wash the print and redevelop in any lith developer that is highly dilute. Here is where I believe the process will give a "lith look." On page 107 Rudman gives a recipe for Non-LIth alternatives by "adding sodium hydroxide (NaOH) to your developer. This compound is produced in the infectious development cycle when paraformaldehyde reacts wih sulfite. NaOH can cause burns and should be handled with gloves. It works best with PQ developers such as Ilford PQ Universal." His recommendation is 5g of NaOH to 1 liter of working strength developer to acheive a lith type look to the print. Page 107 gives an excellent print example and this would be my starting point for lith redevelopment. For any bleach and redevelopment process, you need to have the initial print darker than that of the final image. Typically, you would print an image 1-2 stops darker and process normally. Wash then bleach the print to completion. Wash the print and redevelop in working developer+NaOH as described above. I am not certain if this will work as I intend, or how pronounced the lith apparance will be when completed. Remember this is only one method to achieve a lith look on a darkroom print. It would be just as easy to have a print made that was two stops too dark and bleach back to proper print density. Bleaching without redeveloping or toning gives the print a brown tone as well as giving the print a grainy appearance. There are many additional darkroom practices that can be utilized for post- processing, but the best is just experimenting. Hope this helps, Don --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Roger Smith <rbsmith252@c...> wrote: > I'd also like to hear the details about the Lith redevelopment process. > Please tell all Don. This is a Digital Black and White list. IMHO it > sounds like this process is at least half digital, I'd think it's close > enough to desired topic to be shared with the list. Thanks, so much. > > Roger Smith, East Lansing, MI > > > On Nov 20, 2004, at 8:48 PM, > DigitalBlackandWhiteThePrint@yahoogroups.com wrote: > > > Message: 13 > > Date: Sun, 21 Nov 2004 10:09:00 +1100 > > From: Glenn Barry <glennrbarry@o...> > > Subject: Re: Re: Printers > > > > > > I'd be very interested to hear about the Lith redevolpment, I've never > > heard about such a technique. Off list if others consider it too off > > topic > > > > Thanks > > > > Glenn
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Re: lith redevelopment - Digital Black and White Output
2004-11-21 by hill14701
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