First, let me say that I’m a pleased user of the Cone Piezo Flush set, which has returned all my heads on my 4900 to full operation. So I was considering going to the ConeColor Ink set for the 4900. In doing some research, I came across this site: http://aardenburg-imaging.com/light-fade-test-results/ , which is supposedly a neutral site with reliable fade tests (at least according to one poster on the Luminous Landscape). Their tests (see ID #277-278 in the test results) suggest that when tested on an Epson R3000, the light-fade results were 8.14 to 15 megalux hours when printed on Red River Ultra Pro Satin and Epson Ultrapro Premium Glossy papers versus the Epson Ultrachrome K3 inks (tested on the Stylus Pro Epson printers) had a megalux rating of 43 to 100+ megalux hours depending on the printer and paper used.
While I have not studied this long enough to understand how “megalux hours” into into longevity in fade resistance, the seemingly stark differences cause concern. Can anyone shed light (no pun intended) on these differences in results versus what this site’s results seem to show?