I would like to try “Daytime Ortho adjustment” using
daytime target stars, or for PemPro alignment runs, but I have a -
(possibly unfounded) - concern about using my STL-11000 in broad daylight. I
realize CCD’s are even used to photograph the sun’s image – using a special
solar filter, but I would hate to end up with a permanent “residual blot” on the
sensor. I discovered a half frame sized residual shadow in the middle of
my Full Frame Kodak SLRN (same sensor as STL-11000, I believe), when its
RAW “image DARKS” brightness are pushed upward, toward extreme
levels. I suspect I caused the DSLR burn from its first, overly long test
exposure, on a full moon.
I fear daytime exposures may damage the sensor, perhaps
just using it this way, over some period of time. Also, not sure if I can get
the STL’s shutter exposure time down far enough for daylight fast exposures,
I suppose I could just use a H-alpha filter, but will
this process also greatly diminish the star’s brightness, or just the
background? Certainly would seem safer for the CCD sensor.