James Finnie wrote:
It's hard to know isn't it - there is a general dearth of good
quality data out there for these devices and the spec sheets
themselves are "looser than a wizard's sleeve"... Vs the i1d3 they do
at least specify chromaticity is valid down to 0.05cd/m2 - whereas
I1d3 only specs luminance down to 0.1cd/m2 with no real indication of
what can be expected of the chromaticity readings below 100cd/m2.
The individual "certificate of performance" sheet received with the
Discus unit I just took delivery of claims a verified 0.0017-0.0021
dE(xy) avg for 439 colour samples against 4 different LCD display
backlight technologies using the inbuilt calibration matrices. Seem
like impressively low numbers.
