Kodak Ultima

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Kodak Ultima is a brand of photo paper for inkjet printers sold by Eastman Kodak.

Paper longevity testing

Kodak claims that Ultima picture paper had been tested to last 162 years. This was disputed by Wilhelm Imaging Research, who claimed that it only lasted about ten years. Kodak bases its estimates on typical home light levels of 120 lux for a 12-hour day, a figure based on over 150,000 measurements in consumer homes around the world and verified in the fading of actual display prints. The studies, spanning 18 years, were presented at IS&T's Thirteenth International Symposium on Photofinishing Technologies (IS&T, February 2004, Volume 13).In addition, the 120 lux level has been used by photographic companies for decades. Wilhelm Imaging Research has used a 450 lux level, which is often cited as an ideal viewing condition, but is not typical of a home environment.

There are other environmental degradation factors that need to be considered when assessing the print life of papers, including heat, humidity and airborne pollutants, in addition to light. Ignoring any of these or overestimating light alone is risky and has led to embarrassing over-predictions of print lifetime, such as that seen in the rapid degradation of some early ink jet prints due to atmospheric...
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