Re: [Digital BW] Print Life was Epson 2200,1280 and quad tone options
2002-07-04 by Jerry Olson
Not sure I understand why it would be so important for any image to last 100 years or more. Most color images sure don't. (Unless you're on of the top few dozen photographers in the world, then it may be of more concern). Jer Martin Wesley wrote:
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> > Sam, > > I generally agree with you. I think that the various inks will hold up just > fine although I would bet on the pigments to go a much longer distance than > the dyes. (By the way, I thought Wilhelm's estimate on the Lysonic E was 50 > to 55 years which is the number I picked up at the inkjetart.com site.) > > The problem really is a marketing issue. I think photographers are going to > have a hard time selling fine B&W prints from the Epson 2200 to galleries > and collectors when Epson advertises the materials to have a life of less > than 100 years. There is the impression that archivally processed silver > fiber prints will last forever or for several centuries. This is probably > not true and we really don't know, but this is what you have to match. All > ridiculous but that seems to be the name of the game. > > Unfortunately Wilhelm has not bothered, as far as I know, to do the obvious > and to comparison test these new materials against standard photographic > materials. His "years" are a matter of mathematical extrapolation and I > believe that his "print life" is not with the image at 100% but rather at > the point where it drops below some percentage of the original image. 80% or > 90% I believe. Maybe lower. The RIT test is to 65% color retention. > > Wilhelm's research would be much more meaningful if the "life" was expressed > in comparison to a silver print. Did the Lysonic E or whatever fade at the > same rate as a silver print in the same test? That seems like a pretty easy > thing to measure and the fact that it has not been reported makes me > skeptical. Besides Wilhelm has been missing in action for two years now. > > If Wilhelm ran all of his trials and calculated "print life" the same way > each time, then the real value of his results is in comparing one medium to > another. I really don't think you can take his published year values and > compare them to what you personally might get. Could be less or it could be > more. There are far too many variables. Only our descendants will know for > sure. > > Martin Wesley > http://www.borderless-photos.de/guests.html > > ----- Original Message ----- > From: "Sam A. McCandless" <samcc@...> > To: <DigitalBlackandWhiteThePrint@yahoogroups.com> > Sent: Wednesday, July 03, 2002 6:20 PM > Subject: Re: [Digital BW] Epson 2200,1280 and quad tone options > > > The most recent Wilhelm report (6/20/2000) I have on the Lysonic E > > Quad Neutral inks reported them at greater than 100 Wilhelm years and > > counting both on Lysonic Standard Fine art Paper and on Somerset > > Velvet. Also at 80 - 90 Wilhelm years on Epson Photo Paper. All on > > the 3000. (The Lysonic E Quad Sepia inks reached 80 - 90 years on > > Lysonic Standard Fine Art, 55 - 60 years on Somerset Velvet, and 15 - > > 20 years on Epson Photo Paper. Also on the 3000.) > > > > Some photos from the 1800s are still going strong. But I'm not sure > > they would be if they had been doing the kind of hard time prints do > > in Wilhelm's tests. I don't disagree that there's an informal, > > experience-based 150+ year standard for B&W prints' longevity. But I > > guess we don't know how many Wilhelm years that would be? Wilhelm > > years are made up of days which include 12 hours at 450 lux. Isn't it > > plausible that 100+ Wilhelm years is a _higher_ standard for B&W > > prints? > > > > Sam > > > > > > > (snip) > > > Please visit the Group Homepage to check the Files, Bookmarks, Polls and other resources as they are often being updated. The page is at: > > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint > > Please follow these basic guidelines: > - Include your full name with your message. > - Include the address of your website, if you have one. > - As threads develop, trim off excess portions of earlier messages to keep them short. > - As the topic of a thread changes remember to change the subject header. > - Good manners are required at all time. No personal attacks or "flames." > - Complete your Yahoo profile. > - Before posting a question, search the message archives and the various resources on the homepage. > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/