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.
Displaying 1 to 36 (of 53 products)
Note: The RedCat has been upgraded with exciting new features! In a nutshell:
Now includes a tiltable…
- Manufacturer
- William Optics
- Model
- L-RC51IX
With the introduction of the improved RedCat 51 (and its sibling, SpaceCat 51) comes a new mounting saddle for finder,…
- Manufacturer
- William Optics
- Model
- M-HCRCTG
Note: The SpaceCat is patterned after the RedCat, but in titanium grey instead of red. It incorporates the same exciting…
- Manufacturer
- William Optics
- Model
- L-RC51TG
Note: Illuminator not included; available separately.
The William Optics E-WA24 eyepiece has a standard 1.25" barrel. When installed in our 50mm…
- Manufacturer
- William Optics
- Model
- E-WA24
For coupling instruments or accessories having a 48mm x 0.75mm male mounting thread to cameras, etc, utilizing a 42mm x…
- Manufacturer
- William Optics
- Model
- YE-M48-42
Note: Eyepiece not included; available separately, with optional illuminator.
The William Optics 50mm f/4 finder scope with 90° erecting prism fits…
- Manufacturer
- William Optics
- Model
- M-F50II(blue)
Note: Eyepiece not included; available separately, with optional illuminator.
The William Optics 50mm f/4 finder scope with 90° erecting prism fits…
- Manufacturer
- William Optics
- Model
- M-F50II(gold)
Note: Eyepiece not included; available separately, with optional illuminator.
The William Optics 50mm f/4 finder scope with 90° erecting prism fits…
- Manufacturer
- William Optics
- Model
- M-F50II(red)
All new, with our unique RotoLock for the rigid attachment of your guide camera's 1.25" nosepiece. High quality, fully multi-coated…
- Manufacturer
- William Optics
- Model
- M-G50II(blue)
All new, with our unique RotoLock for the rigid attachment of your guide camera's 1.25" nosepiece. High quality, fully multi-coated…
- Manufacturer
- William Optics
- Model
- M-G50II(gold)
All new, with our unique RotoLock for the rigid attachment of your guide camera's 1.25" nosepiece. High quality, fully multi-coated…
- Manufacturer
- William Optics
- Model
- M-G50II(red)
The William Optics RedCat 90° erecting prism is specifically built for the RedCat 51 astrophotography scope. Built to provide…
- Manufacturer
- William Optics
A curved focal surface is an inherent feature in most telescope designs. While this of no great consequence for general…
- Manufacturer
- William Optics
- Model
- P-FLAT61A
BEST PACKAGE PRICE ON THE MARKET
William Optics does it better, and especially cheaper! Until now you could choose only between…
- Manufacturer
- William Optics
- Model
- E-BINO-P
Introducing the new model William Optics Durabright diagonal - a dramatic step forward in the evolution of mirror diagonals!
This 90°…
- Manufacturer
- William Optics
- Model
- D-DIG2D-C-DB
The WO 6A Mark III is a 0.8X reducer flattener intended principally for the GT71, GT81, Z103 scopes.
The usual superb…
- Manufacturer
- William Optics
- Model
- P-FLAT6AIII
The WO Flattener 68III is a must-have if you desire a flat field for larger format imaging without focal reduction.…
- Manufacturer
- William Optics
- Model
- P-FLAT68III
This new and revolutionary, must-have WO 0.72X Reducer flattener is adjustable for f/6-7.8 refractors. This high-quality accessory has been engineered…
- Manufacturer
- William Optics
- Model
- P-FLAT8
The William Optics Fluorostar 132. Simply put, a joy to use. You will be astonished by the stunning resolution for…
- Manufacturer
- William Optics
- Model
- A-F132-RP33RII-blue
The William Optics Fluorostar 132. Simply put, a joy to use. You will be astonished by the stunning resolution for…
- Manufacturer
- William Optics
- Model
- A-F132-RP33RII-gold
The William Optics Fluorostar 132. Simply put, a joy to use. You will be astonished by the stunning resolution for…
- Manufacturer
- William Optics
- Model
- A-F132-RP33RII-red
Note: The 50mm guide scope shown here is NOT included.
The William Optics Gran Turismo 153; a 6" triplet APO at…
- Manufacturer
- William Optics
- Model
- A-F153GT-blue
Note: The 50mm guide scope shown here is NOT included.
The William Optics Gran Turismo 153; a 6" triplet APO at…
- Manufacturer
- William Optics
- Model
- A-F153GT-gold
Note: The 50mm guide scope shown here is NOT included.
The William Optics Gran Turismo 153; a 6" triplet APO at…
- Manufacturer
- William Optics
- Model
- A-F153GT-red
NOTE: The guide scope rings shown here are optional items.
The new GT71 three-element super APO offer superb quality for imaging…
- Manufacturer
- William Optics
- Model
- A-F71GT-gold
The new GT81 three-element super APO offer superb quality for imaging and visual use at an affordable price. The pristine…
- Manufacturer
- William Optics
- Model
- A-F81GTII-blue
The new GT81 three-element super APO offer superb quality for imaging and visual use at an affordable price. The pristine…
- Manufacturer
- William Optics
- Model
- A-F81GTII-gold
The new GT81 three-element super APO offer superb quality for imaging and visual use at an affordable price. The pristine…
- Manufacturer
- William Optics
- Model
- A-F81GTII-red
A perfect fit for Wostar71, RedCat51 and all William Optics field flatteners.
This T-Mount has 48mm x 0.75mm thread, for minimal…
- Manufacturer
- William Optics
- Model
- YE-TR-BR48-C
A perfect fit for Wostar71, RedCat51 and all William Optics field flatteners.
This T-Mount has 48mm x 0.75mm thread, for minimal…
- Manufacturer
- William Optics
- Model
- YE-TR-BR48-N
All New Vixen style Red dot finder Kit.
This very practical Red Dot Finder (R.D.F.) comes with a handy quick-release bracket…
- Manufacturer
- William Optics
- Model
- M-RDF-P-VB
Note: Eyepiece not included; available separately.
The William Optics E-IR reticle illuminator pairs with our 24mm reticle eyepiece (E-WA24). When installed…
- Manufacturer
- William Optics
- Model
- E-IR
The William Optics Slide-Base with 50mm clamping guide rings will improve the overall rigidity of your small guidescope setup. It…
- Manufacturer
- William Optics
- Model
- M-GR50IISL
High quality William Optics soft case for 71mm refractor telescopes.
Soft carry case for 71mm telescopes. Made of high quality nylon…
- Manufacturer
- William Optics
- Model
- BG1-P004-A01BL01
High quality William Optics soft case for 81mm refractor telescopes.
Soft carry case for GT81 and GTF81 telescopes. Made of high…
- Manufacturer
- William Optics
- Model
- BG1-P002
High quality William Optics soft case for Zenithstar 61mm refractor telescopes.
Soft carry case for Z61mm telescopes. Made of high quality…
- Manufacturer
- William Optics
- Model
- BG1-P006-A01BL01
Displaying 1 to 36 (of 53 products)