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Old 03-05-2009, 05:18 PM
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Paul Haese
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Join Date: Jan 2009
Location: Adelaide
Posts: 9,991
GSO RC testing review

Ok here is my initial assessment of this OTA. The images were taken with a Takahashi flattener (which is most likely not the correct piece of equipment to use with this optical system) and the images were obtained via unguided exposures. My polar alignment needs looking at, as I did my initial alignment with my TSA 102 which is half the focal length of this telescope. Tracking errors were showing up very quickly at a focal length of 1625mm.

Most of the images taken were at 180- 240 seconds duration. Stacks of 10 or more made. The individual images are not much better than the finished images. I have not done any treatment to the stars at all, however some bloating has occurred during processing.

Overall I think this scope will be a goer once I get guiding, flattener and focusor sorted. The figure of each mirror does seem to be well done given the initial results.

Click here for Review and images.

Discussion and comments welcome.
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