Jump to content
  • Join the online East Midlands astronomy club today!

    With active forums, two dark sites and a knowledgeable membership, East Midlands Stargazers has something for everyone.

Opinions Please on 8 inch RC telescopes


Recommended Posts

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

Link to comment
Share on other sites

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?




Link to comment
Share on other sites

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



Link to comment
Share on other sites

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)

Link to comment
Share on other sites

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




Edited by Ibbo
Link to comment
Share on other sites

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

Link to comment
Share on other sites

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)

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.