Digital BW, The Print

Mark,
Thank you very much ...I will... I have much to learn..

thanks

jimbo
  ----- Original Message ----- 
  From: Mark Nelson 
  To: DigitalBlackandWhiteThePrint@yahoogroups.com 
  Sent: Monday, September 06, 2010 1:48 PM
  Subject: Re: [Digital BW] Re: HP Large Format Photo Negatives


    
  You might want to check out my eBook on this topic. I discuss the issues about different color inks and how to find which works best. Green isn't always best in a lot of cases—even when using UV processes: www.PrecisionDigitalNegatives.com

  Best Wishes,

  Mark Nelson

  www.PrecisionDigitalNegatives.com
  www.MarkINelsonPhoto.com
  PDNPrintForum @ Yahoo Groups/

  -----Original Message-----
  From: mrjimbo <mrjimbo@...>
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  Sent: Sun, Sep 5, 2010 1:29 pm
  Subject: Re: [Digital BW] Re: HP Large Format Photo Negatives

  Hi Eric,
  Thanks .. I do under stand that to a degree but certainly not to your skill level (which I highly respect).. It's been years since I've used my dark room. My focus is not on silver printing but rather the P&P prints which uses a UV light source.. In my situation I feel a real fit for that. 
  So I have been feeding my head with everything P&P... I don't have an HP Z 3200 but for many reasons have decided that it's time to raise the bar on printing on clear or opaque material's as I already do a fair amount of that. So for me this in an all around fit I think.. Presently I'm seriously fooling with my 4800 and a RIP to make what I'm hoping is a proper negative.. I have 4 workups that I feel are worthy now.. one in particular is looking quite good I think but it is quite a ways away from what I thought I'd be doing.. Actually I'm a bit confused.. a recent post indicated a orange cast to the negs which of course shouldn't be possible using the HP with Black and Green inks. But that is , I think, his work up for a silver print using a regular color printer..( I honestly don't know) ...Anyway Black and Epsons Cyan are just tooooo blue. So I'm trying to make a neg that looks more traditional to me.. but uses green (which I'm getting from cyan and yellow inks) ... I'm probably at the point that I need to try it before wasting any more time. I'm sure I'll be pulling my hair out after that. \
  I've fooled around before using K6 inks but the level of transparency possible to allow light to pass thru is much better with color inks I think.. I'm just playing but am serious about it.. I'm excited about the destination but am still learning about the ride if that makes any sense.. Ignorance is bliss right...?

  jimbo

  ----- Original Message ----- 
  From: E.Neilsen 
  To: DigitalBlackandWhiteThePrint@yahoogroups.com 
  Sent: Sunday, September 05, 2010 10:40 AM
  Subject: RE: [Digital BW] Re: HP Large Format Photo Negatives

  Jimbo, The color of the light is quite important in silver printing. Multi
  contrast papers react quite differently to different color light. Graded
  paper also can change based on color of negative; see pyro. The addition of
  multi contrast printing a while back in silver gelatin printing was a great
  advantage to photographers that chose to alter local contrast in the
  darkroom during printing rather than through the use of colored filters
  while shooting and film and developer combinations during process. Green
  light produces flat prints, while blue increases contrast. ( Magenta (high)
  and Yellow (low) in opposite terms of light). 

  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 mrjimbo
  Sent: Saturday, September 04, 2010 9:13 AM
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  Subject: Re: [Digital BW] Re: HP Large Format Photo Negatives

  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

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