Re: Questions about the UI at 1.8 gamma
Re: Questions about the UI at 1.8 gamma
- Subject: Re: Questions about the UI at 1.8 gamma
- From: John Zimmerer <email@hidden>
- Date: Mon, 21 Jun 2004 12:53:49 -0700
32 lux is really dim, half of the sRGB recommendation, which I've
established to be less than what a 35 Watt Solux light bulb emits from
10 feet away.
The spec you reference also establishes a minimum resolution, refresh
rate, uniformity, geometric accuracy, convergence, chromaticity, and
luminance. Let me know if your setup meets all of the minimum
recommendations.
In fact, I'd like the rest of the list to respond with whether their
viewing conditions meet the ISO recommendations. You don't have to make
a very detailed response, a simple "my environment is brighter" or "I
work like that" would suffice. For copyright reasons, you'll need to
obtain the spec yourselves to get the full set of recommendations, but
others have already offered the 32 lux recommendation from the spec.
And for the record, the ISO 12646:2004(E) spec doesn't specify an exact
"gamma". It does establish a range for opto-electric transfer functions
(the number 2.2 falls within that range), however the spec only
directly applies to CRT displays, and not to the LCD displays that
Apple ships, given that LCD displays do not have standard power curves.
JZ
On Jun 21, 2004, at 4:20 AM, Roger Breton wrote:
John,
According to Microsoft, "bright" is anything greater than 64 lux. That
doesn't take much -- 64 lux is a little brighter than the light output
of a single 35W Solux bulb placed about 10 feet away from the front of
display. Not many people work in a room that dark.
I, for one, and many of my photographers clients, work in such an
environment. Get real. ISO-12646 calls for less than 32 lux on the
face of
the monitor, 5000K and gamma 2.2.
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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