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Showing results for tags 'cheshire eyepiece'.
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I have encountered a unique problem last night while trying to image using my GSO RC6. The scope is well collimated using a long Cheshire as well as a Howie Glatter single beam laser for verification. CCD inspector also gives me good results when checking with an artificial star. However, when I check using a collimation cap the innermost shadow looks offcentered as well as when I pointed the scope on a real star yesterday (Alp Libra) as well as Spica, it showed a crescent shaped star. This I found to be really weird. Anyone have any idea whats happening here? I live in Bangalore, India, so there's virtually no cool down time required. The temperature gradient between outside and inside is very little if any.
So i have a new project coming up i want to raise funds for so im having a bit of a clearout of some astro stuff ive not used in a while (upgrading as i go along) TS Optics low profile off axis guider, comes with canon camera fitting, spacer and 2" nose piece currently at 159 euro on its own on telescop-express, willing to accept £100 the lot **EDIT now avaliable again**** Meade DSI colour ccd camera. This is the original version not the pro, i have been using it mostly for guiding as its a nice sensitive chip, £30 ***EDIT sold, thanks!**** FLO premium Cheshire, good condition £20 ***sold Skywatcher 1.24" light pollution filter £10 **EDIT now sold, thanks Frank the Troll*** Skywatcher 2" light pollution filter £15 ***sold PM for details happy to chat about postage as well