Focus Scientific

William Optics has a reputation for high-end and affordable telescopes and accessories. Their philosophy of “More quality for Less money” is aimed at making instruments outside the reach of the average pocket, such as apochromatic refractors, affordable and easy to get hold of for anybody who wants to.

Serious stargazer can appreciate the optical and mechanical excellence of a William Optics telescope.

William Optics cooperate with some of the most famous companies, both as suppliers and partners and as OEM clients, their established international presence and a growing market response and appreciation, testify to their commitment to deliver only the very best to you.

Totally focused on offering premium optics paired with unrivalled mechanics, all for an outstanding final value.

Focus Scientific sells the complete line of William Optics products. If you don't see it on our website, please contact us.

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William Optics Zenithstar 73mm f/5.9 Apochromat Refractor OTA (Red)

Manufacturer
William Optics
Model
A-Z73-red
William Optics Zenithstar 73mm f/5.9 Apochromat Refractor OTA (Gold)

Manufacturer
William Optics
Model
A-Z73-gold
William Optics Zenithstar 73mm f/5.9 Apochromat Refractor OTA (Blue)

Manufacturer
William Optics
Model
A-Z73-blue
William Optics Zenithstar 61mm f/5.9 Apochromat Refractor OTA (Red)

Manufacturer
William Optics
Model
A-Z61-red
William Optics Zenithstar 61mm f/5.9 Apochromat Refractor OTA (Gold)

Manufacturer
William Optics
Model
A-Z61-gold
William Optics Zenithstar 61mm f/5.9 Apochromat Refractor OTA (Blue)

Manufacturer
William Optics
Model
A-Z61-blue
William Optics Zenithstar 126mm f/7.7 Apochromat Refractor OTA (Red)

Manufacturer
William Optics
Model
A-Z126-RP33-red
William Optics Zenithstar 126mm f/7.7 Apochromat Refractor OTA (Gold)

Manufacturer
William Optics
Model
A-Z126-RP33-gold
William Optics Zenithstar 126mm f/7.7 Apochromat Refractor OTA (Blue)

Manufacturer
William Optics
Model
A-Z126-RP33-blue
William Optics Zenithstar 103mm f/6.9 Apochromat Refractor OTA (Red)

Manufacturer
William Optics
Model
A-Z103-red
William Optics Zenithstar 103mm f/6.9 Apochromat Refractor OTA (Gold)

Manufacturer
William Optics
Model
A-Z103-gold
William Optics Zenithstar 103mm f/6.9 Apochromat Refractor OTA (Blue)

Manufacturer
William Optics
Model
A-Z103-blue
William Optics WhiteCat 51 250mm f/4.9 APO Telephoto Lens

Manufacturer
William Optics
Model
A-CAT51-W
William Optics Vixen Style Mounting Base

Manufacturer
William Optics
Model
BAFM-ST001
William Optics Vixen Style Mount Base w/ Extension Bar for Star Adventurer and SkyGuider Pro

Manufacturer
William Optics
Model
YG-IO-SGSW01-P
William Optics Vixen Style Base for RedCat (red)

Manufacturer
William Optics
Model
BAGM-RC001RD
William Optics Vixen Style Base for RedCat (black)

Manufacturer
William Optics
Model
BAGM-RC001BL
William Optics Soft Case for Zenithstar 61mm OTAs

Manufacturer
William Optics
Model
BG1-P006-A01BL01
William Optics Soft Case for 81mm OTAs

Manufacturer
William Optics
Model
BG1-P002
William Optics Soft Case for 71mm OTAs

Manufacturer
William Optics
Model
BG1-P004-A01BL01
William Optics Slide-Base 50mm Clamping Guide Rings

Manufacturer
William Optics
Model
M-GR50IISL
William Optics Reticle Illuminator for 24mm Crosshair Eyepiece

Manufacturer
William Optics
Model
E-IR
William Optics Red Dot Finder with Mounting Base

Manufacturer
William Optics
Model
M-RDF-P-VB
William Optics High Precision COPPER 48mm T-adapter for Nikon

Manufacturer
William Optics
Model
YE-TR-BR48-N
William Optics High Precision COPPER 48mm T-adapter for Canon EOS

Manufacturer
William Optics
Model
YE-TR-BR48-C
William Optics Gran Turismo 81mm f/5.9 Apochromat Refractor OTA (Red)

Manufacturer
William Optics
Model
A-F81GTII-red
William Optics Gran Turismo 81mm f/5.9 Apochromat Refractor OTA (Gold)

Manufacturer
William Optics
Model
A-F81GTII-gold
William Optics Gran Turismo 81mm f/5.9 Apochromat Refractor OTA (Blue)

Manufacturer
William Optics
Model
A-F81GTII-blue
William Optics Gran Turismo 71mm f/5.9 Apochromat Refractor OTA (Gold)

Manufacturer
William Optics
Model
A-F71GT-gold
William Optics Gran Turismo 153mm f/7.8 Apochromat Refractor OTA (Red)

Manufacturer
William Optics
Model
A-F153GT-red
William Optics Gran Turismo 153mm f/7.8 Apochromat Refractor OTA (Gold)

Manufacturer
William Optics
Model
A-F153GT-gold
William Optics Gran Turismo 153mm f/7.8 Apochromat Refractor OTA (Blue)

Manufacturer
William Optics
Model
A-F153GT-blue
William Optics Fluorostar 132mm f/7 Apochromat Refractor OTA (Red)

Manufacturer
William Optics
Model
A-F132-RP33RII-red
William Optics Fluorostar 132mm f/7 Apochromat Refractor OTA (Gold)

Manufacturer
William Optics
Model
A-F132-RP33RII-gold
William Optics Fluorostar 132mm f/7 Apochromat Refractor OTA (Blue)

Manufacturer
William Optics
Model
A-F132-RP33RII-blue
William Optics Flattener 8 0.72x Reducer Flattener for f/6-7.8 Refractors

Manufacturer
William Optics
Model
P-FLAT8
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