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
169.00 €
Estimated delivery time : 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
169.00 €
Estimated delivery time : 1-4 days
 
 

Kompaktes 32 mm f/3,75 Guidescope mit T2 und 1,25" Anschluss - kann anstelle des Suchers an Ihr Teleskop montiert werden

  • Öffnung 32 mm
  • Brennweite 120 mm
  • Gewicht nur 240 Gramm
  • Kameraseitiger Anschluss T2 (M42x0,75) und 1,25"
  • Schärfeeinstellung durch Verdrehen des Objektives - mit Konterring
  • Einstellbarer Arbeitsabstand von 0-25 mm hinter dem T2 Gewinde - passend für alle gängigen Autoguider
  • Einfacher Anschluss an das Teleskop anstelle des Suchers, passend unter anderem an Skywatcher, TS-Optics, GSO, Vixen, Celestron ...
169.00 €
Estimated delivery time : 1 week
 
 
FLAT68III longer adjusting adapter for WIFD GT81-M48
69.00 €
Estimated delivery time : 1 week
 
 
FLAT68III longer adjusting adapter for WIFD GT81-M54
69.00 €
Estimated delivery time : 1 week
 
 

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
309.00 €
Estimated delivery time : on request
 
 
Discover the ultimate accessory for your astrophotography experience - the William Optics Flattener 68III!
  • Optimized for full-frame photography
  • Variable adjustable distance to chip
  • No focal length change
  • M48 filter thread
749.00 €
Estimated delivery time : 1 week
 
 
From the beginning, the goal was to create the best possible design for an affordable, small, lightweight, and fast Apochromatic refactor for astrophotography.

Characteristics:

  • 4 lens Petzval optical design
  • Aperture 51mm, focal lenght 250mm, f/4.9
  • Massive OTA from Aluminum alloy
  • Compact and ultra portable
  • Field rotator
  • Helical focuser design
  • Tilting platform
  • Field illumination even for full frame sensors
1061.00 €
Estimated delivery time : 2-3 days
 
 
William offers with the REDCAT61 Astrograph a very well corrected telescope for astrophotography up to full frame format.
  • Aperture 61 mm / Focal length 300 mm / Focal ratio f/4.9
  • Petzval design with chromatic aberration free FPL53 objective (4 elements in 3 groups)
  • Very well corrected and illuminated image field up to full frame format - the corrector is built in - no more adapter battle necessary
  • Camera connection via M48 male thread (suitable adapters are available) - working distance 55 mm
  • 360° rotation of the camera for the right display window
  • Focusing via internal focusing (William Internal Focus Design - WIFD) as with telephoto lenses
  • Tilting option for individual adjustment of the camera sensor to the telescope
  •  Flexible dovetail bar at the base (long version), suitable for Vixen style and Arca-Swiss saddle plates, in addition with 1/4" female photo tripod thread
  • Nylon carrying bag and Bahtinov mask for astrophotography are included in delivery
1899.00 €
Estimated delivery time : 3-4 weeks
 
 
High quality erecting prism with Red anodized plate , the complete housing is made by 6061T Aluminium by CNC .
 
159.00 €
Estimated delivery time : 1-2 weeks
 
 
William Optics- 2-1.25 ROTOLOCK VISUAL BACK ADAPTER
69.00 €
Estimated delivery time : 1 week
 
 
 William Optics Adapter M54x0.75 - Flattener 68III/7A
69.00 €
Estimated delivery time : 1 week