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Astrograph Doctor Services
Hello astrophotographers!
There is subdued interest in my CDK250 astrographs at the moment - probably a post Covid effect as people are spending more on travel, rather than premium instruments.
However, I'm getting a bit of a procession of local astro people with equipment problems, and I thought that maybe I should let the IIS community to know about it.
I'm happy to track down and fix misalignment and collimating issues in catadioptric and refractive optical trains - not Newtonians though. Newtonians are more difficult and may also suffer from lack of rigidity, in which case there is no point in doing any benchtop alignment work on them.
A recent example is the C14 EdgeHD below, which needed the optics cleaned, the focuser reconstructed, the screws that attach the back end to the tube, tightened, and the secondary collimated. For the screws tightening I had to improvise a very long spanner, to reach to the bottom of the tube to stop the nuts rotating while tightening the screws. For the collimation I had to set up the OTA on my milling machine table and use an artificial star across the road, about 50 meters away.
I may also accept optical testing and aluminizing, depending on the specifics of each case.
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