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 -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.