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Astrosystems Quantum 13.1" f/4.5 Dob Sold!

Price - $1,700.00

Ad Number: 134776

Posted: 16 Apr 2018

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Astrosystems 13.1" f/4.5 Quantum Dob
Features a really sweet Terry Ostahowski optics set
Coatings are mint and the images are fantastic!
Primary mirror test report:
RMS: .031
Peak to Valley: .24
Strehl ratio: .96
I have a hard copy of the primary and secondary mirror test reports in hand, as well as the owners manuals.
The scope is natual Baltic birch. It was assembled and totally finished by Astrosystems in their shop. So the construction is top notch all the way.
Includes: Telrad, secondary heater, Astrosystems 2" filter slide (no filters are included), shroud, no tool assembly, truss bag,
cover for storage when broken down,.
Also included is a Sky Commander and 4K encoders.
This is a lifetime scope and it will certainly satisfy its next owner for many years to come.

New, this scope will cost a bit over $4000.
I'm not using it much anymore and it really needs a new home.....

$1700 cash-this is a super deal for a telescope of this quality.

Pick up only in western KY.


  • Condition excellent
  • Location West KY

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