William Optics

Corporate
In a relatively short time, William Optics has established itself and its products as one of the world leaders in short-tube, highly-portable refractors, and has achieved quality recognition for many accessories such as the well celebrated WO Diagonals.

We plan to keep producing fine instruments both for the entry-level and the top-end segments. In the coming year, you will have many pleasant surprises: on top of a whole new range of larger Apochromatic telescopes, we will begin marketing new accessories and binoculars for all pockets.


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The corrector fits to the 2" receptacle of the focuser, it corrects the image field for astrophotography

  • Suitable for refractor telescopes up to 102 mm aperture or smaller (ED, apo, achromat... )
  • Connection telescope side 2" barrel with filter thread
  • Connection camera side M48x0.75 thread
  • Working distance from M48 thread to camera sensor is 55 mm
  • No shortening factor, the focal length of the refractor is not changed
125.21 €
Delivery date : 1-4 days

The corrector fits to the 2" receptacle of the focuser, it corrects the image field for astrophotography

  • Suitable for refractor telescopes up to 102 mm aperture or smaller (ED, apo, achromat... )
  • Connection telescope side 2" barrel with filter thread
  • Connection camera side T2 thread
  • Working distance from T2 thread to camera sensor is 55 mm
  • No shortening factor, the focal length of the refractor is not changed
125.21 €
Delivery date : 1-4 days

New ! Adjustable Flat73A for William Optics f/5 to f/7 telescopes

  • Universally applicable for telescopes between f/5 and f/7
  • Focusing travel is adjustable
  • M63 thread on telescope side
  • M48 thread on camera side
  • Integrated M48 filter thread
259.66 €
Delivery date : on request
From the beginning, the goal was to create the best possible design for an affordable, small, lightweight, and fast Apochromatic refactor for astrophotography.
1000.00 € 898.32 €
Delivery date : 1-2 weeks
High quality erecting prism with Red anodized plate , the complete housing is made by 6061T Aluminium by CNC .
 
133.61 €
Delivery date : 1-2 days
This three-lens apochromat with FPL-53 element and STM coating delivers color-pure, crisp images! Stars are pin sharp points, bright objects like moon and planets show no color fringes, but a lot of details!
5873.95 €
Delivery date : 3-4 weeks
The APO refractor Fluorostar has a three-lens air-gap objective using the ED special glass FPL-53 from Ohara, Japan, and glass made of lanthanum.
7890.76 €
Delivery date : 3-4 weeks

The new ZenithStar 61 are the most versatile and lightest apos from William Optics.

  • High-quality optics with FPL53 lenses
  • Universally applicable for nature and astronomical observations
  • Ideal for astrophotography
  • An ideal travel instrument
  • Precise R&P focuser with 1:10 gear reduction
763.87 €
Delivery date : 3-4 days

The new ZenithStar 61 are the most versatile and lightest apos from William Optics.

  • High-quality optics with FPL53 lenses
  • Universally applicable for nature and astronomical observations
  • Ideal for astrophotography
  • An ideal travel instrument
  • Precise R&P focuser with 1:10 gear reduction
755.46 €
Delivery date : 3-4 days

The new ZenithStar 61 are the most versatile and lightest apos from William Optics.

  • High-quality optics with FPL53 lenses
  • Universally applicable for nature and astronomical observations
  • Ideal for astrophotography
  • An ideal travel instrument
  • Precise R&P focuser with 1:10 gear reduction
805.88 €
Delivery date : 3-4 days

The Gran Turismo refractor is an apochromatic triplet with FPL-53 element for highest colour purity and strong contrast! A refracting telescope that is versatile and leaves little to be desired.

  • An ideal travel instrument
  • High-quality 3-lens optics
  • Can be used visually and photographically
  • 2.5" focuser with 1:10 gear reduction
  • Supplied with focus mask according to Bahtinov
1000.00 €
Delivery date : 3-4 days

New ! Adjustable Flat61 for William Optics ZS61 II Telescopes

  • Compensates for field curvature and enables sharp images at the edges
  • Camera can be mounted directly with M48 camera adapter
  • Suitable for refractors from f/5 to f/7
  • Distance to chip plane is variably adjustable
259.66 €
Delivery date : 1-2 weeks