William Optics
William Optics Corp. was founded in 1996 as “Optical technology Limited” by brothers William and David Yang for the purpose of making astronomical telescopes for use by the more demanding amateur astronomer and birder. The company is based in Tapei, Taiwan, with optical production of their telescopes in Taiwan.
Showing 21–35 of 35 results
Gran Turismo 81 IV refracting telescope
Rated 0 out of 5$1,605.12 Add to cartThe Gran Turismo 81 is a Three Element Designed APO refractor. Using FPL-53 glass this telescope provides excellent aberration correction.
New Adjustable Flat73A
Rated 0 out of 5$238.87 Add to cartAn Adjustable Flat73A Flattener for your Z73 Camera:
The M63 Threads goes into your focuser.
50mm right angle Finder
Rated 0 out of 5$181.58 Select optionsFully multi coated 50mm R.Angle Finder f/4 scope and bonus 90 degree erecting image prism included that fits perfectly on your William Optics and other telescopes.
Fluorostar 132
Rated 0 out of 5$4,360.49 Select optionsFluorostar series (FLT) represents William Optics’ top of the line apochromatic designed for astrophotography. FLT-132 is equipped with the heavy duty 3.5″ RotoLock focuser to carry heavy imaging train which allows you to exploit the potential of this fluorite triplet even further.
Zenithstar 61II APO Space Gray with 32mm Uniguide Scope
Rated 0 out of 5$656.36 Add to cartThis bundle saves you 33 OMR compared to buying the Zenithstar 61 and uniguide separetly directly from William Optics!
Are you ready to unleash the full potential of the night sky? The William Optics ZenithStar 61II with 32mm Uniguide scope is your ticket to the stars! This 61mm refracting APO telescope comes with two amazing accessories – a space gray anodized Cat Series handlebar and a 210mm dovetail plate – to enhance your viewing experience. With its FPL-53 glass and ability to work with any DSLR, you’ll be amazed by the sharp and vivid images you can capture for astrophotography or wildlife photography. Comes with FREE 32mm Uniguide guidescope! For those looking to take their lunar photography to the next level, this portable system can be paired with a dedicated Field Flattener R61 (sold separately) for a large image circle and high-power performance. Perfect with the iOptron Sky Hunter dual-mode GOTO mount (sold separately).
RedCat 71 APO 350mm f/4.9
Rated 0 out of 5$1,861.48 Add to cart● 71mm f/4.9 Astrograph.
● FPL-53 glass for colour free apochromatic performance.
● 4 elements in 3 groups (2-1-1- configuration; new, unique, patented design – not a conventional objective/flattener/reducer design).
● Covers 45mm full frame imaging circle.
● Precise helical focusing and camera rotation; includes a 48mm make thread that accepts a wide T-ring.
● Includes mounting rings, 21cm long Red Vixen style dovetail and Cat saddle.
● Weight = 6.2lbs / 2.8kg (OTA only); 8.2lbs / 3.7kg (OTA with ring, dovetail and saddle).
Adjustable reducer flattener Flat61R for Z61
Rated 0 out of 5$296.44 Add to cartWilliam Optic’s 0.8x Reducer/Field Flattener is a great tool to use when you want to improve image quality by being able to adjust spacing without the need for extension tubes. This particular 0.8x field flattener and reducer is designed specifically for the William Optics Zenithstar 61 refracting OTA.
William Optics Soft Carry Case
Rated 0 out of 5$20.18 Add to cartThis is a William Optics Soft Carry Case for small refracting telescopes. It is a soft bag with no padding (you supply the padded foam inserts). Made of durable and tear-resistant Cordura-like material. This is an original William Optics product.
Gran Turismo 81 WIFD
Rated 0 out of 5$2,152.00 Add to cartThe WIFD Apochromatic series is part of William Optics‘ CAT (Central Axis Tube) design concept, which places the focuser mechanism at the center of the optical tube, rather than at the rear. This design helps to minimize the effects of flexure and image shift, ensuring a stable and reliable imaging platform. The internal focuser design also eliminates the need for a traditional drawtube, which can cause image shift and vignetting, especially when using heavy cameras and accessories. With the WIFD series, the user can enjoy a smooth and precise focuser, with no visible movements from the outside. This makes the WIFD series an ideal choice for astrophotographers who demand the highest level of performance and reliability from their equipment.
GuideStar 61 APO
Rated 0 out of 5$484.20 Add to cartThe William Optics Guidestar 61 APO (Apochromatic) telescope is a 61mm refractor telescope that is optimized for deep-sky and planetary observations. It features a doublet objective lens made of FPL-53 ED glass, which provides excellent color correction and sharp images. The telescope’s compact design and portability make it a popular choice for amateur astronomers. Additionally, the Guidestar 61 APO has a dual-speed 10:1 focuser for precise focusing and a built-in electronic focusing system for easier guiding during long exposure astrophotography.
Fluorostar 91
Rated 0 out of 5$2,189.39 Add to cartThe William Optics Fluorostar 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. The three-element optical design features a 91mm aperture using FPL-53 glass. The STM-coatings and superb quality provide excellent optical performance and unmatched value.
Wide 48mm Micro 4-3 T-Mount for Olympus – Space Gray
Rated 0 out of 5$33.28 Add to cartThis precisely-machined T mount from William Optics is engineered for Olympus Micro-4/3 cameras. It includes a large 48mm thread to help secure imaging accessories to the T Mount and onto the Olympus camera. Space Gray finish
New Slide-base 50mm Guiding Rings
Rated 0 out of 5$66.58 Select optionsNew Slide-base 50mm Guiding Rings(Blue/Gold/Red) 185 grams.
Flattener 68III
Rated 0 out of 5$684.93 Add to cartThis high-quality flattener has been engineered and CNC machined for usage with our FLT 132, 102GTS and other APO refractors.