Archived posting to the Leica Users Group, 2002/04/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The P3 chemistry that I use is basically odorless, all clear (no nasty ferricyanide or the like), and lasts easily six months in my processor without even a hint of going bad. I mix 15 liters at a time and use it as needed until all 15 liters are used. Then I mix another 15 liters. I've never had to dispose of unused P3 chemistry. As I said, I've used a single batch for a period of six months (June-December 2001) and the filter pack didn't change. Since Ciba now comes in three contrasts, masks are rarely needed. They are needed in commercial labs since they all use Ilfochrome Rapid which only comes in the high contrast (labeled normal) version. Ilfochrome Classic comes in low, medium, and normal (high) contrast versions. The medium and low contrast emulsions have tamed the color spectrum in that everything gets equal billing. Jim At 11:16 AM 4/12/2002 -0400, Doug Nygren wrote: >I have yet to see a digital print that can compare with a Ciba for >vibrancy. The same is true of C-prints. Cibas are great. > >There are many downsides to Cibas, however. The chemicals are toxic >beyond the norm; you often need to make masks to handle the contrast; >reds and oranges need to be reigned in; Cibas are many times more >expenseive than c-prints or digital ones. When you work with a Ciba, you >have to wait for the print to dry to see where you're at. Add a dryer to >your expenses and time. > >What you get, though, is wonderful. > > From my perspective there are some downsides to c-prints and digital as >well. But that's another story. > >doug nygren - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html