Digital BW, The Print

Eric,
Right now lets have my comments be thoughts only as I'm not far enough along with the "Green" negs but I'm in it now up to my neck that's for sure..
I feel the green is significant only in respect to how it functions with UV light.. conventional negs work with visible light so shades of black are probably just fine I would think..
I have two printers I'm playing with... an Epson 4800 and a Canon IPF 9000 but presently I'm mostly focused on the 4800.. What I'm noticing is that the greens seem to have a better level of shaded transparency then does just black inks.. Probably due to the pigments used.. I started out with just Black and cyan on the 4800 but since have really changed the recipe.. I'm using all three blacks both cyan's and yellow in a B&W environment in Studio Print using only 6 shades in the 8 shade environment..  I have yellow as shade 3 and have adjusted the densities of the cyan's to get me to what is a shade of green that blends visually quite well with the blacks.. I'm still tinkering with the mix but think I'm about as far as I should go with this concept ..so I need to try it and see what I get.. The negs look quite good to my inexperienced eye. So we'll see. Anyway for conventional silver prints using visible light as a the light source I don't think green would matter.. but it would be easy to validate that simply by making a neg both ways and see what results came out the other end.

jimbo
----- Original Message ----- 
  From: E.Neilsen 
  To: DigitalBlackandWhiteThePrint@yahoogroups.com 
  Sent: Friday, September 03, 2010 8:36 PM
  Subject: RE: [Digital BW] Re: HP Large Format Photo Negatives


    
  Pierre, What I am getting at, is whether or not the green only negs work
  well with silver, without extraordinary steps. I have been quite happy with
  my digital negs going from PT/PD process to silver gelatin with a simple
  change of media; PT/PD coated paper to silver gelatin. no multiple
  developers, no new curve just pick up and print. Do your same negs work well
  with silver and your alternative process without new curves? 

  Eric Neilsen

  Eric Neilsen Photography

  4101 Commerce Street, Suite 9

  Dallas, TX 75226

  www.ericneilsenphotography.com

  skype me with ejprinter

  www.ericneilsenphotography.com/forum1

  Let's Talk Photography

  _____ 

  From: DigitalBlackandWhiteThePrint@yahoogroups.com
  [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Un Globe
  Trotteur
  Sent: Friday, September 03, 2010 2:50 PM
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  Subject: Re: [Digital BW] Re: HP Large Format Photo Negatives

  Eric, I have been able using my program to generate green negs to use with
  Silver. I am not sure though it is what the HP is for. from what I am
  reading it is more for palladium.

  PO
  http://www.PierreOlivierTavernier.com

  From: Eric Neilsen 
  Sent: Friday, September 03, 2010 12:55 PM
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  <mailto:DigitalBlackandWhiteThePrint%40yahoogroups.com> 
  Subject: RE: [Digital BW] Re: HP Large Format Photo Negatives

  And how are those green negs printing for regular silver printing? 

  Eric Neilsen

  4101 Commerce Street, Suite 9

  Dallas, TX 75226

  214-827-8301

  <http://ericneilsenphotography.com/forum1> Let's Talk Photography

  www.ericneilsenphotography.com

  SKYPE ejprinter

  From: DigitalBlackandWhiteThePrint@yahoogroups.com
  <mailto:DigitalBlackandWhiteThePrint%40yahoogroups.com> 
  [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com
  <mailto:DigitalBlackandWhiteThePrint%40yahoogroups.com> ] On Behalf Of
  convincingblack
  Sent: Wednesday, August 25, 2010 3:47 AM
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  <mailto:DigitalBlackandWhiteThePrint%40yahoogroups.com> 
  Subject: [Digital BW] Re: HP Large Format Photo Negatives

  Hi all,

  My name is Angel. I work for HP as a colour scientist and I have devised the
  solution for the HP Z3200 printers that allows the users the creation of
  digital negatives to make prints with alternative processes.

  Harald told me about his forum, but right now, I'm out of home/office with
  very restricted access to the internet. Here you have two links to some
  entries answering similar questions that you made about HP Large Format
  Negatives in HybridPhoto forum.

  Thanks a lot for your interest. 
  I'll connect again from time to time when I get back.

  Angel Albarran

  http://hybridphoto.com/forums/showthread.php?p=15208#post15208
  http://hybridphoto.com/forums/showthread.php?p=15234#post15234

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