[AZ-Observing] Re: Laptop Screens

  • From: Kerry Weatherford <kwx4d@xxxxxxxxxxxxx>
  • To: az-observing@xxxxxxxxxxxxx
  • Date: Wed, 25 Aug 2004 16:12:17 -0700 (GMT-07:00)

Thanks Matt,

I'll actually have to consider that too since it can be configured exactly to 
each individuals needs.  Also thanks for the link on the RGB control software - 
I had recently read something about that but there was no link.  My computer is 
less than a year-old so it should work on it.

-Kerry




-----Original Message-----
From: Matt Luttinen <mluttinen@xxxxxxxxx>
Sent: Aug 25, 2004 3:50 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Laptop Screens

I made a frame out of cardboard and use theatrical gel sheet to dim my
display. The advantage is that you can "tune" the attenuation with =
layers of
gel and even use different shades to control the total effect. The main
disadvantage is that the gel sheets are not optically "perfect" and =
scratch
more easily than plastic. However, under low light, the minor defects in =
the
gel are unnoticeable.

I am still working on a satisfactory configuration--the display is =
either
too dark, or too bright. Also, I have found that different Astro =
programs
require diffent gel sets to be optimally visible. Finding the "just =
bright
enough" point has been elusive.

Any good photo supply store (Photomark, etc) will stock gel sheet. I use =
a
combination of a medium red and a reddish purple. One layer of the
red/purple sandwiched between layers of medium red really knocks the
brightness down.

There is also a piece of freeware called DarkAdapted that allows for =
global
RGB control of the LCD (or CRT) screen output. Get it at:

http://www.adpartnership.net/DarkAdapted/index.html

It doesn't work right on my vintage 1999 laptop, but should function =
fine on
newer machines.

Matt

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