William Optics RedCat 91 WIFD (2024) + FREE International Shipping HK$21,480.00
Highlights of the RedCat 91 WIFD APO 4 elements Petzval flat field design with FPL-53 optics WO Internal Focus Design (WIFD), compatible with motorised focuser Fast focal ratio f/4.9 Full frame coverage...
William Optics RedCat 71-II (2024) + FREE International Shipping HK$14,380.00
Highlights of the RedCat 71-II WIFD APO 4 elements Petzval flat field design with FPL-53 optics WO Internal Focus Design (WIFD), compatible with motorised focuser Fast focal ratio f/4.9 Full frame coverage...
William Optics miniCat 51 WIFD (NEW 2024 Version) + FREE Lens Pen + FREE International Shipping HK$7,880.00 HK$7,680.00
NEW 2024 version of the popular miniCat 51 APO Free International Shipping! Available in limited quantity, Accepting order now! Please contact for the shipping schedule. Please take note that unlike previous...
William Optics RedCat 61 WIFD 300mm f/4.9 APO + FREE International Shipping HK$13,080.00 HK$12,880.00
Highlights of the RedCat 61 WIFD APO 4 elements Petzval flat field design with FPL-53 optics WO Internal Focus Design (WIFD), compatible with motorised focuser Fast focal ratio f/4.9 Full frame coverage...
William Optics SpaceCat 61 Limited Edition 2023 + FREE International Shipping HK$13,880.00 HK$13,580.00
Highlights of the SpaceCat 61 WIFD APO 4 elements Petzval flat field design with FPL-53 optics WO Internal Focus Design (WIFD), compatible with motorised focuser Fast focal ratio f/4.9 Full frame coverage...
William Optics RedCat 51 (NEW 2023 Version) + FREE International Shipping HK$7,080.00 HK$6,880.00
NEW 2023 version of the popular RedCat 51 APO Free International Shipping! Available in limited quantity, Accepting order now! Please contact for the shipping schedule. Please take note that unlike previous versions...
Special Package Sales: William Optics GT153 APO + GuideStar 61 (Not Eligible for Free Shipping)
Special Package Sales: William Optics GT153 APO + GuideStar 61 (Not Eligible for Free Shipping)All new GT153 Introducing ALL NEW GT153 full-frame imaging APO! You will be blown away by the small details you can...
William Optics Guide Star 61 APO Refractor (Soft Carry Case included) HK$3,580.00
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William Optics RedCat 51 (NEW 2022 Version) + FREE International Shipping
NEW 2022 version of the popular RedCat 51 APO Free International Shipping! Available in limited quantity, Accepting order now! Please contact for the shipping schedule. Highlights of the RedCat 51-II...
2022 NEW Release: William Optics FLT-120 Triplet APO Refractor + International Free Shipping HK$28,880.00 HK$26,880.00
Celestron RASA 8" OTA (CGE Dovetail) HK$16,800.00
*Free shipping does not apply on this item* Please choose express shipping options such as FedEx, EMS, etc during checkout 8” ROWE-ACKERMANN SCHMIDT ASTROGRAPH (RASA 8) OPTICAL TUBE ASSEMBLY (CGE DOVETAIL) Flat...
Celestron C11 Edge HD 11" Optical Tube Assembly (CGE Dovetail) HK$31,480.00
*Free shipping does not apply on this item* Please choose paid shipping options such as FedEx, EMS, etc during the checkout process Experience our best optical performance with EdgeHD’s aplanatic, flat...
Daystar Solar Scout SS60Dds Solar Scope HK$7,680.00
SS60-ds INCLUDES: Quality Achromat Doublet 60mm refractor Helical Front-end Focus with fine precision can focus for visual and imaging. 'Doublestack' performance at no extra cost Top quality Quark*...
Borg 8070 - Series 115 Carbon Fiber Tube 70mm Long HK$1,850.00
8070 – Series 115 Carbon Fiber Tube, 70mm long 70mm long carbon fiber tube M108/P1.25 female at the objective side M108/P1.25 male at the focuser side 165g Made in...
William Optics FLT-132 2021 with 3.5" Feather Touch & Rotolock HK$41,580.00
WO FLT-132 III with FeatherTouch Focuser: Now accepting orders! 132mm f/7 apochromatic refractor. The FLT132 represents William Optics' top of the line apochromatic designed for visual observation and astrophotography. The...
William Optics 50mm Guiding Scope (Red) with 1.25" RotoLock HK$1,280.00
All new, a unique, RotoLock high-quality fully multi coated WO 50mm f/4 Guiding scope that fits perfectly on your William Optics and other telescopes. The tube diameter is 54mm and dew shield of 58mm. Focal...
Celestron f/6.3 Reducer Corrector 0.63x for SCT HK$1,280.00
This combination focal reducer and field corrector lens accessory works with all Celestron 5", 6", 8", 9 1/4", 11" and 14" Schmidt-Cassegrain telescopes This clever accessory makes it possible to have a dual focal ratio...
2021 NEW Release: William Optics Zenithstar 73-III f/5.9 APO (Free Soft Carrying Bag) HK$5,980.00
ZenithStar 73-III comes with new rising blocks underneath the mounting rings for added clearance Now comes with FREE WO patented Diffraction Spikes Bahtinov Mask Cap Zenithstar 73-III is a greatly versatile and...
2021 NEW William Optics FLT-132 III Triplet APO with 3.3" R&P Focuser HK$33,960.00
Specifications Aperture 132mm Focal Ratio F/7 Focal Length 925mm Objective Type 3 elements, Air-spaced, FPL-53 Resolving Power 0.86" Limiting...
Celestron C5 Spotting Scope 127mm f/10 Schmidt Cassegrain HK$5,880.00
Includes: 5" Schmidt-Cassegrain Optical Design StarBright XLT Coatings 25 mm (50x) Eyepiece 45° Erect Image Diagonal 6x30 Erect Image Finderscope ** Not eligible for free shipping ** Kindly select EMS /...
Celestron C8 Edge HD 8" Optical Tube Assembly (CG-5 Dovetail) HK$12,800.00
Celestron C8 Edge HD 8" Optical Tube Assembly (CGE Dovetail) HK$12,800.00
2021 NEW Release: William Optics FLT-91 f/5.9 APO + FREE International Shipping HK$17,380.00 HK$16,380.00
Accepting order now, limited quantity available! **Free International Shipping to most locations ** Available in space grey, red and gold Recommended Accessories: WO Flat6A-III 0.8x reducer flattener Flat6A-III...
William Optics Red Dot Finder Kit with Vixen Style Mounting Base HK$910.00 HK$750.00
This very practical Red Dot Finder (r.d.f.) comes with a handy, quick-release T bracket included in the package. It fits perfectly on all William Optics telescopes. With the Red Dot Finder, centering celestial objects...
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