Archived posting to the Leica Users Group, 2008/12/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Phil I just couldn't tell you. Looks to me like a chemical effect of sorts. My chemistry is simply 10g Metol and 100g of sodium sulfite per liter which I replenish and use indefinitely. I would bet the effect is reduced with less Metol, but that a 50/50 bet. I can post the inquiry on APUG where several photochemical engineers hold court. At 03:43 PM 12/9/2008, you wrote: >Chris Saganich wrote:Yea, TriX just does that under high contrast >conditions, see example: > >The outside light is bleeding from Roy's black dreads: > ><http://www.imagebrooklyn.com/street_pages_2007/bs146.htm> > >=================================================== > >Chris, I'm having trouble understanding what's happening here. I've seen >halation effects radiating from *bright* subject areas, but here it's just >the opposite. What up with that? > > >-- >Phil Swango >307 Aliso Dr SE >Albuquerque, NM 87108 >505-262-4085 > >_______________________________________________ >Leica Users Group. >See http://leica-users.org/mailman/listinfo/lug for more information Chris Saganich MS, CPH Senior Physicist, Office of Health Physics Weill Medical College of Cornell University New York Presbyterian Hospital chs2018@med.cornell.edu http://intranet.med.cornell.edu/research/health_phys/ Ph. 212.746.6964 Fax. 212.746.4800 Office A-0049 "I am the radiation"