Archived posting to the Leica Users Group, 2000/02/29
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Jobo still recommends a 5 minute presoak when rotary processing, but not with Xtol. I don't remember why Xtol is different. Ken > -----Original Message----- > From: Mark Rabiner [SMTP:mark@rabiner.cncoffice.com] > Sent: Tuesday, February 29, 2000 2:50 PM > To: leica-users@mejac.palo-alto.ca.us > Subject: Re: [Leica] Presoak > > George Huczek wrote: > > > > At 06:05 PM 28/02/2000 -0500, Dan Post wrote: > > >Some people recommend a one minute water soak- this causes the emulsion > to > > >absorb the non-reactive water, and keeps the process from starting too > soon > > >with short developing times- the water retards the action of the > developer > > >by simply being there until the tank is full and you start agitation, > where > > >it diffuses out. > > > > Ilford recommends against using a presoak now. It removes the wetting > > agent built into some films. The only film I presoak is Konica 750 nm > > infrared film. > > Kodak also recommends against presoak for at least a decade. I'm sure Fuji > does > too! (I'm going to check on that) I've tried not presoaking, it does not > work > for me. Killer Air-Bells from Hell when you least want or need them!!! > Mark (I can not not presoak forever!) Rabiner