Product series:
The telescope manufacturer William Optics offers very high-quality apochromatic and achromatic refractors which are very well suited to visual observation, and especially to astrophotography.
William Optics
Guidescope UniGuide 32mm Red
$ 183.00
ready for shipping in 24
h
William Optics
Guidescope UniGuide 50mm Red
$ 217.00
ready for shipping in 24
h
William Optics
Guidescope UniGuide 50mm Ultra
( 5 / 5 )
$ 229.00
ready for shipping in 24
h
William Optics
Camera adaptor T-Ring Nikon Z 48mm
( 5 / 5 )
$ 103.00
ready for shipping in 24
h
William Optics
M48 / Sony E Adaptors
$ 80.00
ready for shipping in 24
h
William Optics
Flattner Flat61A for Z61
$ 332.00
ready for shipping in 24
h
William Optics
Guidescope Guide Star Apo 61
$ 690.00
ready for shipping in 24
h
William Optics
Camera adaptor M48 compatible with Canon EOS
( 5 / 5 )
$ 68.00
ready for shipping in 24
h
William Optics
Flat GT
$ 378.00
ready for shipping in 3-5
weeks
William Optics
Focusing Mask Bahtinov 75-110mm
$ 80.00
ready for shipping in 24
h
William Optics
Full-Frame Flattener/Reducer 0.72x
$ 1,090.00
Product can be shipped as of 30.03.2026
William Optics
Flattener Flat73A for ZenithStar 73
$ 332.00
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat6AIII
$ 332.00
ready for shipping in 3-5
weeks
William Optics
Rotator Rotolock Visual Back 3.5
$ 298.00
ready for shipping in 24
h
William Optics
Flattener Flat68III
$ 1,000.00
Product can be shipped as of 30.03.2026
William Optics
Rotator Adaptors for M63 focusers
$ 183.00
ready for shipping in 24
h
William Optics
Camera adaptor Canon EOS R T-Mount M48
$ 103.00
ready for shipping in 24
h
William Optics
Camera adaptor T-Ring Fuji FX 48mm
$ 80.00
ready for shipping in 3-5
weeks
William Optics
Focusing Mask Bahtinov 243-308mm
$ 171.00
ready for shipping in 24
h
William Optics
Guidescope UniGuide 50mm Gold
$ 229.00
Product can be shipped as of 30.03.2026
William Optics
Adjustable Flattener Reducer Flat7A
$ 980.00
Product can be shipped as of 30.03.2026
William Optics
Focusing Mask Bahtinov 105-148mm
$ 91.00
ready for shipping in 24
h
William Optics
Guidescope Guide Star Apo61
$ 690.00
ready for shipping in 24
h
William Optics
Guidescope UniGuide 32mm Space Grey
$ 183.00
ready for shipping in 3-5
weeks
William Optics
Adapter Flat68II / Flat7A
$ 58.00
ready for shipping in 3-5
weeks
William Optics
Guidescope UniGuide 32mm Gold
$ 183.00
ready for shipping in 3-5
weeks
William Optics
Camera adaptor M48 compatible with Nikon
$ 68.00
ready for shipping in 3-5
weeks
William Optics
Flat6A III Special Edition FLT91
$ 493.00
ready for shipping in 3-5
weeks
William Optics
M48 adaptors for Nikon Super high precision
$ 160.00
ready for shipping in 24
h
William Optics
Guidescope AC 50/200 RotoLock Gold OTA
$ 275.00
ready for shipping in 24
h
William Optics
Focusing Mask Bahtinov 172-235mm
$ 160.00
ready for shipping in 24
h
William Optics
Guidescope 50mm f/4.0 RotoLock
$ 229.00
ready for shipping in 24
h
William Optics
Rotator M92
$ 286.00
ready for shipping in 24
h
William Optics
Adaptors for Flattener 6A
$ 103.00
Available on request
William Optics
Rotator Rotolock Visual Back 3.5
$ 298.00
ready for shipping in 3-5
weeks
William Optics
Rotator Rotolock Visual Back 3.5
$ 298.00
ready for shipping in 3-5
weeks