DaveW said:
It will SLIGHTLY shorten the life of the picture tube, but not real
noticeably.
To slightly amplify on the first reply, *if* you have a lot of image
content that is "bright" (lots of highlights, or high "Average Picture
Level - APL), the wearout will be faster. In addition, the wearout
is typically NOT even between R, G, & B, so you will also see a
color shift of the white point.
Most CRT monitors have a feature called Beam Current Limiting,
which will limit the overall "brightness" of any image displayed. The
downside of setting at 100% is the high probability that some images
with "brighter" content (more highlights, or higher overall APL) will
cause that feature to activate, thus effectively canceling any previous
attempt at calibration.
For that reason, I highly recomment against setting CONT at 100%.
Oh, and good luck in trying to adjust to fit any gamma profiler. Due
to variations in production tolerances, wearout with use, and other
factors that may not be of general interest to detail, the ability to do
any kind of calibration without help of some measuring device (as
Chris V indicated) is likely to be very unsatisfactory to a reasonably
critical user.
If you are not a "critical user", then go ahead & follow the
recommentation, but please do not expect great results - the eqpt is
just not capable.
Rgds,
NGA
