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  #1  
Old 05-10-2018, 12:45 PM
furgle (Adam)
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On Axis Guider SC

This is my favourite piece of equipment. This version allows up to M42 (T2) connections. I'm upgrading to the full frame version.


Your entire FOV is now available for finding a guide star, without needing a separate guide scope. No more differential flexure, or camera rotations.


With an on axis guider, a specially coated filter angled at 45 degrees bounces visible light to your camera, while allowing near infrared to pass through to a guide camera. Your main camera remains static, but you can adjust the position of the guide camera in X & Y using sliders.


https://www.innovationsforesight.com...s-guider-onag/


It also allows the use of real-time focusing software SharpLock.


I'm pulling my system apart tonight to take photos of the internals, so attached to this post right now is an external shot.


This has been rarely opened, and always kept in a humidity controlled observatory.



$950


Pick up in Eatons Hill, or I can deliver within 150km (or to Toowoomba). Shipping at buyers expense.
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Last edited by furgle; 08-10-2018 at 11:53 AM.
  #2  
Old 05-10-2018, 05:27 PM
peter_4059's Avatar
peter_4059 (Peter)
Big Scopes are Cool

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Join Date: Jun 2007
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Hi Adam,

It looks like you have a newt in one of the images here and I see you have a paracor and QSI683ws8 like me. I was wondering if the ONAG fits between the paracor and the QSI683ws8 in terms of back focus distance?

Cheers,

Peter
  #3  
Old 05-10-2018, 05:32 PM
furgle (Adam)
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You'd have to put the paracorr after the onag due to the 55mm(?) backfocus requirement. Putting a spacer on the guide port of the onag would keep the guide camera par focal.
  #4  
Old 07-10-2018, 08:23 AM
furgle (Adam)
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extra images
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  #5  
Old 07-10-2018, 11:51 AM
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Joshua Bunn (Joshua)
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Location: Albany, Western Australia
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Hi Adam,



I have an ONAG XM (the full fram version) that i no longer require, I'm thinking of selling it. Very little use. Would you be interested in purchasing it potentially?



Regards
Josh
  #6  
Old 07-10-2018, 12:12 PM
furgle (Adam)
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I am most definitely interested. I'm just waiting on the arrival of my new kit to work out what adapters and clearances I need.
 

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