Hello Graeme! Thank you very much! It's very interesting research! By the way, just as an idea - is it possible to make special "cleaning" utility for i1Pro and Spectrolino, which will turn lamp on forcibly for some seconds to "clean" it? It would be great, because Lino has no possibility to measure strips, so it's not possible to "clean" the lamp with the native measurements. Also I think it can help to restore some i1Pro lamps because when the lamp became too dark, the software failed to calibrate it, so it's not possible to "clean" the lamp with the regular strip measurements. What do you thing about it? Whether it can help to restore lamps? Best regards, Alexey Gribunin, UNIT Color Technologies, Moscow, Russia.
In fact
after "cleaning", the worst I could get was 0.08 Delta E, a 20x reduction,
and back in line with instrument specifications...
I've seen similar effects on all my i1Pro's, and also Spectrolino's,
although none as dramatic as the Rev E was. ..
So if you do lots of spot measurements with your i1Pro's, and get the
impression that your accuracy and consistency of measurement is getting
squirrelly, you may be right. But there is a way of fixing it!