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
Apochromatic refractor AP 51/250 RedCat WIFD
$ 1,160.00
ready for shipping in 24
h
William Optics
40mm SWAN eyepiece, 2''
( 5 / 5 )
RRP:
$ 264.00
RRP:
$ 264.00
Our price:
$ 217.00
ready for shipping in 24
h
William Optics
Guidescope UniGuide 50mm Red
RRP:
$ 253.00
Our price:
$ 241.00
ready for shipping in 24
h
William Optics
Guidescope UniGuide 32mm Red
$ 207.00
ready for shipping in 24
h
William Optics
Erecting Finder 50mm 1.25"
$ 310.00
ready for shipping in 24
h
William Optics
Apochromatic refractor AP 91/448 BlackCat 91 WIFD OTA
RRP:
$ 3,910.00
Our price:
$ 3,890.00
ready for shipping in 24
h
William Optics
Apochromatic refractor AP 108/518 UltraCat WIFD
RRP:
$ 4,830.00
Our price:
$ 4,600.00
ready for shipping in 24
h
William Optics
Diagonal mirror Dura Bright 90° 2"
$ 287.00
ready for shipping in 24
h
William Optics
Polar wedge High Latitude SkyGuider Pro
RRP:
$ 402.00
Our price:
$ 391.00
ready for shipping in 3-5
weeks
William Optics
Apochromatic refractor AP 71/350 RedCat 71 WIFD
$ 1,720.00
ready for shipping in 24
h
William Optics
Camera adaptor T-Ring Nikon Z 48mm
( 5 / 5 )
RRP:
$ 103.00
RRP:
$ 103.00
Our price:
$ 87.00
ready for shipping in 24
h
William Optics
Binocular telescope attachment ''BinoViewers'' with accessory package
RRP:
$ 600.00
Our price:
$ 580.00
ready for shipping in 3-5
weeks
William Optics
Apochromatic refractor AP 51/178 MiniCat WIFD OTA
$ 1,380.00
ready for shipping in 24
h
William Optics
Guidescope Guide Star Apo 61
$ 760.00
Sale price:
$ 465.17
ready for shipping in 24
h
William Optics
Guidescope UniGuide 50mm Ultra
( 5 / 5 )
RRP:
$ 253.00
RRP:
$ 253.00
Our price:
$ 241.00
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat6AIII
$ 379.00
ready for shipping in 24
h
William Optics
Cat Series Saddle Handle Bar
( 5 / 5 )
$ 91.00
ready for shipping in 24
h
William Optics
Apochromatic refractor AP 156/1217 Fluorostar Gray OTA
$ 9,700.00
ready for shipping in 3-5
weeks
William Optics
DSD 210 D-Prism rail
$ 68.00
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
Flattner Flat61A for Z61
RRP:
$ 379.00
Our price:
$ 356.00
ready for shipping in 24
h
William Optics
Apochromatic refractor AP 73/430 Super ZenithStar 73 Gold OTA
$ 1,010.00
Product can be shipped as of 15.11.2025
William Optics
M48 / Sony E Adaptors
$ 80.00
ready for shipping in 24
h
William Optics
Apochromatic refractor AP 156/1217 Fluorostar Red OTA
$ 9,700.00
ready for shipping in 3-5
weeks
William Optics
Flat GT
$ 437.00
ready for shipping in 24
h
William Optics
Apochromatic refractor AP 61/300 RedCat 61 OTA
RRP:
$ 2,070.00
Our price:
$ 1,610.00
ready for shipping in 3-5
weeks
William Optics
Focusing Mask Bahtinov 172-235mm
$ 114.00
ready for shipping in 24
h
William Optics
Apochromatic refractor Pleiades 181 AP 181/998 Astrograph OTA
$ 23,800.00
ready for shipping in 6-10
weeks
William Optics
Polar wedge Low Latitude SkyGuide Pro
RRP:
$ 402.00
Our price:
$ 391.00
ready for shipping in 24
h
William Optics
Apochromatic refractor AP 61/360 ZenithStar ZS61 II OTA
$ 910.00
ready for shipping in 3-5
weeks
William Optics
Apochromatic refractor Pleiades 68 AP 68/260 Astrograph OTA
RRP:
$ 2,760.00
Our price:
$ 2,540.00
ready for shipping in 3-5
weeks
William Optics
Vixen-Style 90mm Prism Clamp
$ 114.00
ready for shipping in 24
h
William Optics
Guidescope Guide Star Apo61
$ 750.00
ready for shipping in 24
h
William Optics
4" extension adapter for Flat GT
RRP:
$ 114.00
Our price:
$ 97.00
ready for shipping in 3-5
weeks
William Optics
Losmandy Swan Series 400mm
$ 195.00
ready for shipping in 24
h
William Optics
Apochromatic refractor AP Fluorostar 120/780 Space Gray OTA
$ 4,830.00
ready for shipping in 3-5
weeks