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The UPS shipping of
my RASA 11 was not kind, the collimation may have been ok for
an APS-C chip, but for my 35mm sized sensor, the corners were
badly distorted. After doing a week of repair work on the observatories
roll off framework, I was finally able to spend some time collimating
and adjusting the tilt of the sensor during the first quarter
moon. It went pretty well, I used a free ware called ASTAP to
look at each short exposurre after each adjustment and determine
how it went. After about 6 adjustments in collimation, and one
in tilt on the camera, it looked good and I took a pair of test
images to see what I had.
The first shot was of
M41, and that looked decent, so I panned over to this pair of
star clusters and gave it two fives for the Luminance, and 5min
each for the RGB filters. (swapped out manually) Seeing was absolutely
the worst due to strong wind all day long, but other than puffy
stars the shot looks decent.
M46 on the left has
the planetary nebula on its north edge called NGC2438 seen as
a greenish disk here. On the right is M47, a more coarse cluster.
A total of five clusters and two planetary nebula can be seen
in this shot.
The next dark of the
moon we will be resuming normal imaging in Happy Jack. Just thought
Id share this final test shot.
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