Astro imaging setup?

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MarkG

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Mark
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Has anyone here tried astro imaging? I'm thinking of giving it a go, but there's probably more telescope models than there are camera models! :eek:

To keep things simple, I'd like to target planets and maybe a few 'local' star clusters. Stuff I know so far - for a basic setup, I'll need:

  • Newtonian reflector telescope, somewhere around 6-8" aperture.
  • Equatorial mount for the 'scope.
  • Probably an RA motor.
  • Movable telescope tube - so I can balance it not to dump my 7D in the dirt the moment I let go.
  • Suitable adapter/eyepiece/barlow to accept a T-ring.
  • T-ring for the camera. Looks like I can get one for about £15.
Does this sound about right? Any recommendations on specific brands/models? Can I get all this without needing a Bank Manager's bonus to pay for it?

Thanks! :)
 
I'd head over to stargazerslounge.com and do some reading there.

My immediate thoughts are:

- newtonian + DSLR is not good for planets (SCT+webcam is much better) but OK for clusters.
- You will probably need to either find a dedicated photo Newtonian or play about with mirror height/focuser distance as most Newts aren't designed to focus on an imaging sensor.
- Expect lots of coma (distorted stars) the further from the centre you are
- Astrophotography is 90% mount, 10% camera and 100% determination (which is why I don't do it any more ;)
- Astrophotography gets very expensive very quickly.... You have been warned.
 
Thanks! Already been browsing SGL.

Agreed on the mount vs. camera side - I'm doing loads of research, and planning to go to Astrofest, before even thinking about breaking out the plastic. Budget will be fixed - and not very big. If I can't do it for under £500 (camera excepted as I already have that), then I just won't bother - I can get far better results using a web telescope for £0, but it doesn't have the 'hands on' appeal I'm after. :)
 
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Have you spoken to JGS001 on here, he is a regular on a couple of Astro forums and could possibly point you in the right direction.

Gary
 
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