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Opinions Please on 8 inch RC telescopes


fwm891
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Hi All, I'm thinking of getting an 8-inch RC scope and would like to get a flavour of different peoples views on these scopes.


 


I'm an imager so wont be looking to do any visual work with the scope. It will be used in an observatory on a fixed pier.


 


May thanks for your time - Francis


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Hi Francis, I had a 6" RC for about a year, well impressed! I only sold it as I bought a MN190 for AP. Found collimation to be fairly easy and its a light scope (the 6") so an EQ5 was used. It was an Altair Astro version and well made! Hope this helps?


 


Cheers


Ron


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I did not say I was against


just needs thinking about


 


not sure which mount you have but it is a slow system and I was using 30min + subs with mine and the SX9


its not been on the mount since I got the 694, but will be come galaxy season :D


 


Steve


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Thanks Steve,


I have an Avalon Linear Fast Reverse mount and Atik 383L+ mono. Un-binned it would give me 0.67" / pixel 2x2 gives 1.3"/pixel


 


No problem with the mount.


 


They all seem to be GSO clones (in my price range)


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The mount is no problem Francis


 


you might consider one of the Tak coli scopes


 


I will dig out the links for the collimation


 


bright stars tend to be a bit blobby but I think that can be sorted in processing and short subs


 


 


Steve


Edited by Ibbo
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Thanks All and a Happy New Year to you.


 


Decision made. I took the plunge yesterday and bought an 8-inch Carbon tube RC from Astronomia. One of the Altair Astro badged GSO varieties, lots of thinking gone into this.


 


My aims were to get a scope that would give me a larger image scale for the smaller (not too small) DSO's. Ideally I wanted to mount a new scope in parellel with the AA115 frac I already had so I needed to stay within a loading restraint of 20Kg for the mount and a strict budget (read allowance).


So thanks to people like yourselves on the net I've read reviews (for and against) RC's I even nearly changed my mind and started looking at a Celestron Edge 8 inch but experience with an older C11 and a number of poor reviews swayed me away.


I looked at some second hand  metal tubed RC's and SCT's but here the weight of the OTA was just too high.


 


Now need to swat-up on collimation with these RC beasts


 


Thanks again - Francis


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Good move Francis, I found collimation on my 6" easier than a Newt! Look forward to some great images! (no pressure!!)  ;)

Thanks Ron, How did you go about collimation: just a Cheshire or laser as well?

I have both and will get a rear levelling plate at some stage (or make one, it doesn't look very complicated)

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