Re: Neutal density filters over Monitors.
Re: Neutal density filters over Monitors.
- Subject: Re: Neutal density filters over Monitors.
- From: Peter Miles <email@hidden>
- Date: Mon, 3 Mar 2008 18:16:15 +1300
Hi karl
Thanks for the reply.
Koch Karl wrote:
Hi Peter,
why so complicated (and expensive)? Since you need to calibrate/
profile your monitors anyway, why not do it with a system that dims
the backlight of your iMacs to the desired luminance instead of
using a video card LUT based method.
I agree dimming backlights would be easier.
However, in my experience, dimming in hardware also has it's problems
too. With our lab of the older 'white' 24 inch iMacs, dimming them to
their maximum extent using causes the panel brightness to drop more
at the edges than the center, making the panel unevenly illuminated.
leaving the monitor near its more normal operating brightness gives
more even illumination.
Our computers are replaced every three years. (they are leased). With
modern panels getting brighter and brighter, using ND filters starts
looking like an easier solution for making the large shifts in
display brightness needed.
with the brightness slider at it's minimum, I get an average of
around 220 cdm2 for our 24 inch iMacs.
Our Graphics IT needs are meet largely through apple platforms. The
cost to buy higher-end apple workstations in order to get dimmer
monitors does not seem like a good investment. I am hoping the ND
filter idea might prove a much cheaper option. The current iMac 24
inch meets our performance / cost needs needs quite well for our mid-
level graphics computer labs. But the super bright monitor is not
ideal for color managing.
On the (German – sorry) Apple website is an article how the German
Spiegel magazine calibrate their monitors:
http://www.apple.com/de/pro/profiles/spiegel/index3.html
I tried unsuccessfully to run this address through a web site
translator.
With iMAcs is there some technique to drop panel brightness in
hardware more than the 'brightness slider' allows?
thanks For you help
Regards
Peter Miles
Massey University
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