Hal V. Engel wrote: > On Thursday 05 November 2009 10:59:02 am Alexandre Prokoudine wrote: >> On 11/5/09, michael crane wrote:
>>> why can't you print something out and adjust the monitor so it looks >>> like the print ? would that work ? >> You are missing the "controlled lighting" bit. The light coming from >> window is not the same even when sun doesn't shine directly into the >> room. >> >> Try adjusting contrast of a picture in the evening/night and then look >> at it in daylight only to discover that you quite overdid contrast. >> >> Color science is fun :) >> >> Alexandre > > There are actually ISO and ANSI standards about how your work room should be > setup. These include things like: > > 1. How bright the room should be. In fact the room should be very dim (less > than 30 LUX in the professional standards and always less than 60 LUX) and > the > room should always have the same level of lighting when doing this work. > 2. The color temperature of the lighting (around 5000K). > 3. The color of the walls and furniture in the room (medium to dark gray). > 4. The color of the clothing warn by those doing imaging work (dark gray or > black is best). > 5. The color of the monitor surround (dark gray or black). > 6. The location of any lighting relative to the monitor (no glare). > > When working on your monitor you want your perception to be totally adopted > to > the (calibrated and characterized) monitor and you want the room, it's > contents and lighting to have little or no influence on your color perception. > > When you view a print in the viewing booth the same thing should be true for > the print and it's viewing conditions. Wow ! And the colour experts wonder why so few of us use CMS ! Cheers, J/. -- John Beardmore,MSc EDM (Open),B.A. Chem (Oxon),CMIOSH,CEnv,AIEMA,MEI Managing Director, T4 Sustainability Limited. http://www.T4sLtd.co.uk/ Energy Audit, Carbon Management, Design Advice, Sustainable Energy Consultancy and Installation, Carbon Trust Standard Registered Assessor Phone: 0845 4561332 Mobile: 07785 563116 Skype: t4sustainability
