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More questions about using laptops in dark adapted
situations. This "night vision" mode. I haven't used any astro
software lately but years ago, this mode was a darkened red monochrome mode
designed to preserve your dark adaptation. If this is still the case, and
you wanted to darken it further, wouldn't a neutral density type filter be
better? Red filters would have to be very dark to reduce the intensity of
a red screen. Like a red filter over an LED display, the red passes
through unimpeded while other colors are attenuated to increase contrast and
depth of the display. Also, since it is likely you'll need other software
not equipped with night vision mode, you'll need all the colors to see to read
the screen.
Just curious. I've often thought of using a
laptop in conjunction with an eyepiece digital camera and have thought that the
neutral density filters would be the way to go. Some displays don't work
as well in monochrome and there's always the problem of the blue hyperlink that
would virtually disappear behind a red filter. There's many kinds of
neutral filters out there. The smoked plastic that was popular in stereo
cabinets, solar film for car windows, report folder covers, etc. Working
with a new HP laptop has shown that some filter will be needed.
The intensity of the flourescent backlight is not adjustable and
enough bleeds through the LCD that would make an unfiltered display too bright
even in full cutoff. It would be great if the backlight could be
replaced with a red LED array. No filter would be needed and the intensity
could be infinitely adjusted.
Of course, down here in Florida, the dew would
quickly destroy any laptop not built for underwater usage :-)
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