"Most" of the calibrations are
completed. The imaging train is robust and reliable. CCD Inspector shows that
collimation is required, but almost no tilt exists in the imaging train. The Edge
optics are providing a nice flat field. Seeing has not been very good and
trying to lower FWHM has proven to be a challenge. I believe after collimation
the numbers will improve. However, that will have to wait as the dome gets very cold at
night this time of year.
I have been imaging Caldwell
C30 for a couple of nights. The darks, bias, and flats have been integrated in
PixInsight. Stay tuned for a first image along with a description of the target.
I’m having some trouble with getting LUM flats that aren’t distorted. I’m
using a light box and the RGB flats are acceptable. The QSI CCD requires flats that
are approximately 35700 ADU’s. I’ll need to get this worked out before I can move
forward with the processing.
Sorry for all the technical
jargon, but every once in a while I’ll throw in a post like this to interest
the astrophotographers reading the blog. Believe it or not, there are quite a
few of them lurking out there. Your comments are always welcomed! George
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