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Old 19-12-2019, 02:26 PM
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lhansen (Lars)
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Unidentified newt

I just bought a 10Ē Newtonian in a very used condition. Focal length is 85Ē. As you can see from the images the mirror is rather thick by modern standards. Comes with a unitron finder.

I am trying to establish provenance.

Apart from the 85Ē focal length writing on the back of the mirror I canít see any other signs of identification.

If you have an idea of where this may have come from I would appreciate hearing from you.

Thanks in advance

LARS
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  #2  
Old 19-12-2019, 02:40 PM
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Looks like an Astro Optical Supplies to me Lars ( judging by the end ring and mirror cell ), they would often put a unitron finder and EPs with their scope.
Don't know whats going on with the focuser base


Zane
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Old 19-12-2019, 02:57 PM
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chrisp9au (Chris)
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Agreed, that takes me back a few years, definitely Astro Optical Supplies.
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Old 19-12-2019, 03:16 PM
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That scope should be very good on planets !
Congratulations

Bobby .
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Old 19-12-2019, 03:45 PM
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Lars I think I recoganise that main mirror and the secondary, and i am sure that i made the vanes for the secondary and the clips holding the main to the mirror holder, especially with the black tape around them, because that is exactly what i did

Also that mark around the main mirror is from tape that was wound around it to keep it in place and not moving from the aluminum clips.

Can you tell me without giving anything away the first letter of the persons first name from whom you bought it, if you want to that is.

If it happens to be my old reflector than it is definitely Astro Optical from whom i bought it.

I didn't buy the tube just the mirrors

If this is all true than how incredible that would be.

Leon
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Old 19-12-2019, 05:20 PM
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lhansen (Lars)
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Newt

I donít know who the last owner was.

I am embarrassed to say I bought it from our local tip shop (affectionately known as the junktion).

I am not sure if I should restore or sell - opinions appreciated.

Best

LARS
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Old 19-12-2019, 06:17 PM
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From the tip, wow that is incredible indeed
I will have to search the computer for some photos of the build for this telescope, but it sure looks like the mirrors i actually owned especially the vanes with the rounded nuts on the end, and the taped main mirror clips.

Leon
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Old 19-12-2019, 06:22 PM
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lhansen (Lars)
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Newt

We have a saying in bathurst- the tip will provide. And indeed it has on multiple occasions. Iíve bought seven scopes from the tip so far. Distributed them to six worthy young folk who want to get into astronomy. This one is a bit special though and I still have to find a mount.
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Old 20-12-2019, 08:32 AM
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AstralTraveller (David)
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What a great find and what a small world. That scope certainly deserves restoration, it's a bit of a classic. As it happens I have a 10" f8.2 mirror with 2" secondary, but the mechanical parts have been scrapped. I also have the same Unitron finder. I have a rough plan of rebuilding it to live in the back yard as a planet and lunar scope. I'm thinking of a dobs with an eq platform. That seems easier to build and it keeps the eyepiece in a accessible position. If you use a GEM make sure the tube is easy to rotate. Otherwise you wind up with contortionist eyepiece positions.
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Old 20-12-2019, 08:41 AM
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Merlin66 (Ken)
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David,
Strip the main mirror and you have an ideal white light solar telescope - just need to add an ND3 for safety.
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Old 20-12-2019, 10:10 AM
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AstralTraveller (David)
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Quote:
Originally Posted by Merlin66 View Post
David,
Strip the main mirror and you have an ideal white light solar telescope - just need to add an ND3 for safety.

Nice idea Ken but I think I'll keep using the 15cm acro for that (with solar continuum filter). I also have a Sphinx GEM which one day may have a Ha scope on it. The mount is mechanically great but the Starbook controller is the pits (IMHO), but that won't matter for solar.
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Old 20-12-2019, 03:14 PM
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lhansen (Lars)
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Restoration

Iíve got enough projects on my books and Iíve decided not to restore. There is no chance for me to tackle a restoration in anything less than a year.

I am thinking Iíll put the scope up for sale, contact me if interested.

Best

LARS
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  #13  
Old 26-12-2019, 10:11 AM
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torana68 (Roger)
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Great find, wonder where the mount went?
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