[argyllcms] Re: question about monitor calibration
- From: Graeme Gill <graeme@xxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Tue, 29 Jan 2013 11:14:17 +1100
Alberto Ferrante wrote:
> monitor with the sensor turned to face me and the white "cap" on) with
> all the lights on and the curtains open and I got a read of 27.7 Lux. My
> Sekonic light meter measures 4.9EV that is approximately 80Lux in the
> same conditions.
> I am a bit puzzled about this...
Hi,
the absolute calibration of instruments is notoriously poor,
and is complicated by differences in angular sensitivity,
spectral sensitivity, and the difficulties of reproducing
an absolute calibration standard.
Graeme Gill.
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