William Optics

Used William Optics ZenithStar 73 III f/5.9 Doublet APO + Flat73A + WO M63 Rotator

SKU: U2512-MR-A-Z73IIIRD


  • Sale
  • $500.00
  • Regular price $1,088.00

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Not Returnable Please note that used items are not returnable.

This is a red Z73III in very good condition, with mostly clean optics (there are a few tiny spots on the coatings) and an unmarked body, with the exception of a paint chip near the focuser.  See the photos.  It comes in its original padded case, with the stock rings, handlebar, and Vixen dovetail. 

It includes not only the Flat 73A focal reducer/field flattener (in black) in very clean condition, but also a black WO M63 camera rotator. 

New, the Z73 was $730 before it was discontinued.  With the flattener ($242) and the rotator ($116), this is a $1088 value at over HALF OFF!  At this price, it won't last!  

 
 
Description

Zenithstar 73 III is a greatly versatile and portable refractor telescope for beginners and veterans alike. Designed for both astrophotography and wildlife photography, high power visual observing through the Zenithstar 73 is also hugely satisfying. The image is crisp, sharp and color aberration free thanks to the use of top quality glass — FPL-53. The 43mm image circle when Flat73 is used covers a full-frame size sensor nicely. 

Specifications

 

Aperture 73 mm (2.75")
Focal Length 430 mm
Focal Ratio f/5.9
Glass Type FPL-53
Manufacturer William Optics
Optical Type Doublet
Tube Length 310mm
Tube Weight 2.5kg (5.5lb)
Weight 5.5 lbs.
What's in the box

Package includes:

  • Z73 III APO
  • Flat 73A focal reducer/field flattener
  • WO M63 camera rotator
  • Innovative Bahtinov Mask
  • Handle with integrated guide scope shoe
  • Vixen style Dovetail
  • Soft Carry Case
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