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Williams Optics 66mm Zenithstar (!price correction!) with X0.8 Flattener Sold!

Price - $275.00

Ad Number: 171887

Posted: 22 May 2019

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(Whoops put in the wrong price! It has now been corrected)

Williams Optics 66mm Zenithstar Doublet Refractor with X0.8 Flattener
Since I got my bigger setup this little guy is no longer being used so it time for it to go. I mostly used it as my guide scope and as a grab and go.
I star checked it last night and it’s a very well corrected doublet as you would expect from William Optic’s. I believe it was built in 2007.
OTA only and as listed below.
  • Aperture 66mm
  • Focal Length F 5.9
  • Objective Doublet, Air Spaced, Fully multi-coated, STM coating
  • Resolving Power 1.78”
  • Limiting Mag. 10.8
  • Lens Shade Retractable
  • Focuser 40.6mm (1.6”) Crayford Focuser with 1:10 dual-speed microfocuser, 63mm (2.4”) Focuser Travel Length (This is not a 2" focuser but a 1 1/4")
  • Focuser 360 Degree Rotatable Design
  • 1.25” Adapter Brass Compression Ring
Other Info and included items:
  • WO Aluminum lens cover
  • 1.25” Diagonal
  • WO Aluminum Case ( Case is used with travel scratches) with keys.
  • L – type mount bracket
  • Tube weight 3.5 lbs
  • Color anodized black and midnight blue. ( tube has scratches in the paint)
  • Flattener WO X0.8 II ( I picked this up used… note: There is a scratch on the lens. You can see it in the photo at about 9 0’clock . I don’t think it will effect it’s use but I don’t know that for sure as I never used it.)
  • I will also include a extension I made for the using it as a guide scope. (This item needs the inside diameter painted flat black before use.)
  • Manual
Here is a review of this scope:
I pay the paypal fee you pay the shipping and insurance.


  • Condition used
  • Location Lodi, Calif

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