Could there be also some inherent balance in that lamp where the thinner filament burns with a higher output and the tungsten condensation on the lamp envelop dampens that output again? Till heat brings the tungsten back to the filament. You mentioned that the lamp is glued into its socket, is the window where the light is coming from quite small? The glue keeping the lamp isolated to bring it on temperature fast or the other way around creating a heat sink? Met vriendelijke groet, Ernst Dinkla Grafische Techniek Quad, piëzografie, giclée www.pigment-print.com On Sun, Feb 21, 2016 at 10:52 PM, Graeme Gill <graeme2@argyllcms.com> wrote:
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.
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