I know 80 may sound shocking but I am suprised by the range of low luminances that works in a direct screen to proof match, as long as one has a dimmable viewing booth. Calibration is about setting a device in a "known state". The job of standard is to find common grounds for everybody to use. I work in a large publications printing environment and you'd be surprised what we're getting away with... Roger -----Original Message----- From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx] On Behalf Of Fabrizio Giudici Sent: February-02-12 7:54 PM To: argyllcms@xxxxxxxxxxxxx; Roger Breton Subject: [argyllcms] Re: Monitor calibration On Fri, 03 Feb 2012 01:35:34 +0100, Roger Breton <graxx@xxxxxxxxxxxx> wrote: > My NEC PA271 is calibrated well under 100. There are no fixed, > absolute numbers to use. I understand that there could be room for adjustments in function of the environment, but I don't understand the latter sentence. Calibration is about everybody having a standardised viewing setup, so when he postprocesses the photos in a certain way he's sure that other people with proper calibration see things in the same way. If you calibrate with a dimmer monitor at 80 cdm2, I suspect that the way you fix shadows will make them appear brighter than they should on my monitor at 120 cdm2. -- Fabrizio Giudici - Java Architect, Project Manager Tidalwave s.a.s. - "We make Java work. Everywhere." fabrizio.giudici@xxxxxxxxxxxx http://tidalwave.it - http://fabriziogiudici.it