Heavy on opinion, rather light on the research --- IMO. Otis
Shel Belinkoff wrote: > I know about Wilhelm, and it's the marketing people who are hyping print > longevity. When I see a 50+ year old ink jet print that hasn't faded, > I'll believe that they have reasonable longevity. Over the years many > scientists, engineers, designers, and manufacturers have made > innumerable claims, all based on then current knowledge and information, > and many of those claims have been proven wrong. > > Mike Johnston wrote: > > > Don't mean to pick on you here, Shel my friend, it's not quite that > > unknowable. Henry Wilhelm runs an independent lab and had been working with > > print permanence for many decades (he was part of the original "East Street > > Gallery" that first devised archival washers for black-and-white). His > > integrity is unquestioned, and his methods for determining likely print LE > > (life expectancy) are by now very sophisticated. He did get blindsided by > > the ozone "orange fade" problem last year, but generally his methods are a > > pretty good indicator of likely print LE. After all, it's widely accepted > > that the permanence of a good platinum print is 200-500 years, but > > photography hasn't been around that long. These claims, while not 100% > > certain (what is?) are not just based on marketing. > -- > Shel Belinkoff > mailto:[EMAIL PROTECTED] > http://home.earthlink.net/~belinkoff/pow/enter_pow.html > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
