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  1. Replies
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    Re: Aardenburg Adhesive-Free Picture Framing

    Excuse me Drew, I clearly touched a nerve with you. But to be clear, I didn't claim to have invented anything new or novel in this article. I know full well that borderless prints in particular have...
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    Re: Aardenburg Adhesive-Free Picture Framing

    Wow. I've been schooled and taken to the woodshed. Thanks for that Drew. To be clear, larger sized traditional wet process fiber based silver gelatin prints will probably never be made flat enough...
  3. Thread: consumer inkjet

    by MHMG
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    Re: consumer inkjet

    Epson now claiming 2x improvement on new HD and HDX inksets compared to older K3 ink set. Testing at Aardenburg Imaging in progress, but looks like the 2x improvement is valid. Alternatively, Epson...
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    Re: Free Saltzman 8x10 Enlarger

    It was moved from Maryland to Massachusetts. The truck rental if I recall correctly was about $600, but I loaded other items on the truck, so hard to say what the amortized price was for the enlarger...
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    Re: Archival digital inkjet printing........

    Yes, ink sets are easier to characterize on "general light fade performance" properties than are the media we choose to print on. If that weren't the case, I'd have quit doing light fastness testing...
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    Re: Jon Cone on Carbon Piezography

    Ken,

    Yes, I didn't take the time to go back through the article and cite the appropriate page, but you have indeed found it. You clearly have a good handle on what these concepts are all about. I...
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    Re: Jon Cone on Carbon Piezography

    Yes, direct sun is a harsh mistress for any artwork. Even pure cotton papers and photographic grade gelatin binders will degrade within a decade or so under the "front facing window" scenario, so...
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    Re: Jon Cone on Carbon Piezography

    Ken, the average of 140 Megalux hours with max of 240 are values in the "Status" column in the AaI&A database. The status column tells how much exposure has accumulated in ongoing tests for each...
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    Re: Permanence of non-carbon/sepia Piezography

    My personal view is that any system that achieves AaI&A Conservation Display Ratings exceeding 100 Megalux hours for both lower and upper limits has robust enough light fastness that other factors...
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    Re: Permanence of non-carbon/sepia Piezography

    Or you can simply filter the list for [Ink/colorant][contains] "cone" to narrow the list down to all samples of piezography:)

    As Oren noted, you will need to register and create a login/password,...
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    Re: 6 years......with inkjet

    I don't, but I rely on good instincts and knowledge of craft. No testing lab can be absolutely certain that the products in test represent highest quality levels or that they were documented...
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    Re: 6 years......with inkjet

    The AaI&A Conservation Display ratings, located in one of the AaI&A database columns, are a pretty good "summary" of the tolerated light exposure dose where "little or no noticeable fade" will occur....
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    Re: 6 years......with inkjet

    Institutions like LOC have very large budgets indeed, but those budgets are spread thin over many worthy activities. Major Museums, Libraries and Archives tend to allocate the majority of their funds...
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    Re: 6 years......with inkjet

    Actually, there have been mountains of research on the traditional silver gelatin print, and photo conservators understand a great deal about the degradation factors. Many of the "bad actors" we see...
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    Re: 6 years......with inkjet

    Sal, I do understand what you are saying, but you have a lot more idealism about government service than I do. In the interest of full disclosure, I was once a Federal US employee. I served as the...
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    Re: 6 years......with inkjet

    Please Let us all know when that ivory tower gets climbed.:rolleyes:

    I started the Aardenburg digital print research program as a subscription plan nearly five years ago, very much patterned as a...
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    Re: 6 years......with inkjet

    Correct. You've got that right. Paper bleaching can also occur. It's usually subtle, but it's there nonetheless and get's picked up in the AaI&A light fade testing method. One of the key things I've...
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    Re: 6 years......with inkjet

    Exactly right. WWAD!. For over 50 years OBAs have been incorporated in silver gelatin prints, and photographers like the look. A nice example of OBA fluorescence in an Adams print is shown in this...
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    Re: 6 years......with inkjet

    Your wish for ""totally independent institutional inquiry" is achieved as good as it gets by the Image Permanence Institute (IPI) in Rochester, NY. A 503(c) non profit and institutionally connected...
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    Re: 6 years......with inkjet

    I recently commissioned Digital Silver Imaging (www.digitalsilverimaging.com) to print six "traditional silver gelatin" prints, albeit exposed on a Durst Theta 51 digital printer rather than an...
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    Re: Ilfochrome discontinued? One last lightfastness test for the history books?

    Bob, thanks. Hance Partners is one of the labs I called first. Their website indicates they are still offering Ilfochrome, but alas, no more. Weldon, also no more. Laumont in NYC didn't return my...
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    Re: Ilfochrome discontinued? One last lightfastness test for the history books?

    Thanks Asher, I just got off the phone with Frank at LAB-Ciba. He will have to generate a transparency from my digital target as an intermediate step since Frank does traditional optical...
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    Re: Ilfochrome discontinued? One last lightfastness test for the history books?

    I guess we are getting down to the wire. It's been my intention for some time to benchmark Ilfochrome (the classic polyester base reflection base material) in the Aardenburg lightfastness database...
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    Re: Aardenburg archival test results....?

    Bill, and everyone,

    Sorry I didn't respond sooner. It's been a busy week. Your write-up on image permanence is very well reasoned, and a very nice statement that let's your clients know you take...
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    Re: Aardenburg archival....interpreting, part II

    Thank you Bill, Tyler, Oren, and Kirk for the kind words of support. Kirk could have emailed me directly with his question about interpreting the Aai&A test results, but I'm glad he opened the...
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    Re: Aardenburg archival test results....?

    I wrestled with what term to put there, and "PASS" is all I could come up with! By "PASS" I mean that neither the lower or upper limit of the conservation display rating has yet been reached. Testing...
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    Re: Aardenburg archival test results....?

    Hi Kirk,

    There is indeed a lot of information to digest on the AaI&A website. Perhaps it's best to simply start with the basics of light exposure. The AaI&A light fade test samples are measured...
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    Re: Cibachrome vs Digital Prints

    Gotta keep this thread alive! Working on a Guiness book of world records, aren't we?

    Actually, I want to benchmark the Cibachrome (aka Ilfochrome) process in the Aai&A light fade database using...
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    Re: Aardenburg lightfastness tests available.

    Nate, you are absolutely correct. The UV component in the incident illumination is a very important variable, so much so that many people mistakenly believe that the UV exposure accounts for nearly...
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    Re: Aardenburg lightfastness tests available.

    Well, I guess even my colleagues in the field of image permanence might also call it competition!

    However, I tend to think of the new conservation display ratings as complementary to...
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    Re: Aardenburg lightfastness tests available.

    Crystal Archive is in test and is a public link. You can download the reports, and there is also a news article about it on my site:

    http://www.aardenburg-imaging.com/news.50.html

    Not yet rated...
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    Re: Aardenburg lightfastness tests available.

    Kirk invited me to make a comment in this thread. Not previously a member, I am thus new here ...will have to dust off my Linhof and get some Large format photography going again.

    The new AaI&A...
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