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Old 18-02-2019, 04:13 PM
RyanJones
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RyanJones is offline
 
Join Date: Jun 2018
Location: Melbourne,Australia
Posts: 1,439
Quote:
Originally Posted by traveller View Post
Hi Ryan,
There is a formula to follow to obtain good match with your telescope and camera and therefore the demand for good guiding.
Your SCT and 350D combo will result in 0.56"/pixel, a very demanding resolution on your mount.
See this link for more info https://astronomy.tools/calculators/ccd_suitability
Cheers
Bo
Thanks for the link Bo. Interesting reading.

Given that my setup with this particular OTA isn't ideal, I will practice on my newt first. With the C9.25 , I have to accept it will have its challenges. As you mentioned before, I will try to learn guiding before expecting it to work with the 9.25. This returns us back to the original question then is what guide setup I should use. Will my 102mm refractor be good ? Should I get a smaller 80 / 400 setup ? Or as Ken suggested should I scrap those ideas and go for an OAG ?
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