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William Optics ZenithStar 61 ED (new 2019 Model) Apochromatic Doublet Refractor Telescope

William Optics ZenithStar 61 ED (new 2019 Model) Apochromatic Doublet Refractor Telescope
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Price:  £415.00
List Price:  £449.00
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Product Code:  A-Z61BU
Manufacturer:  William Optics
Telescope Type:  APO Doublet Refractor
Aperture (mm):  61 mm

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William Optics


Small but mighty! The William Optics ZenithStar 61 is a 61mm apochromatic ED doublet that will not break the bank. Perfect for travelling with its soft case, this high-quality telescope will travel with you wherever you go.

Lens Design

  • ED glass (Japanese imported Ohara glass) doublet air-spaced, in CNC machined ultra-high precision lens cell.
  • Each lens is Fully Multi-Coated with a special super-high transmission coating (STM Coating) on all surfaces.

Low C.A.

  • Fully baffled to block all extraneous off-axis light rays and prevent glancing reflections, increasing overall contrast.
  • 61 mm clear aperture and F/5.9 focal ratio.

Nothing Left to Chance

  • Perfect for Vixen type mounts. You can slide it directly into the mount without a dovetail plate if you like (telescopes comes with Vixen compatible style L-bracket).
  • Pure William Optics quality fit and finish: powder-painted white CNC-machined aluminum tube.
  • Retractable dewshield, smallest size ever and enhanced portability!

Astrophotography ED scope

  • Fast focal ratio for excellent exposure on photography usage.
  • Flattener Available (optional).
  • Perfect for piggybacking as a guide scope!

Patented Design

  • Stainless steel reinforcement inserts on both sides and on the back to allow heavy loading without problems.

Attention to Packaging

  • The basic package includes the OTA, Vixen compatible L-bracket and soft carry case.
  • Carry-on size: you do not have to leave this treasure home!
  • Two-year, no fuss warranty and constant customer service!

Aperture 61mm
Focal Ratio F/5.9
Focal Length 360 mm
Objective Type Synthictic Flourite FPL 53 Doublet, Air Spaced, 
Fully Multi-Coated, SMC coating.
Image Circle Z61 - 41mm / Z61 with Flat 61 - 43mm
Lens Shade Retractable
Focuser 50.8mm(2") R&P Focuser
with 1:10 Dual Speed micro focuser
70 mm Focuser Travel Length
1.25" Adapter Brass Compression Rings
L-type Mount Rotatable L Bracket
Field Stops Baffles
Tube Length 230 mm Fully Retracted
300 mm Fully Extended
Tube Weight 1.45kg

 

 

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