21 Feb
2016
21 Feb
'16
9:52 p.m.
Alexey Gribunin wrote:
But this means, that i1's white tile calibration also was made with "cold" device, so such calibration was not perfect for "warm" conditions, so readings made after i1 "warming" were stable but not really accurate.
It should be accurate if the instrument has a consistent "warmth" for each reading. Graeme Gill.