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 1–20 of 34 results
RedCat 51 mm f4.9 APO Astrograph Refractor Telescopeر.ع.335.200 Add to cart
Is it a telescope? Is it a camera lens? Is it both? Call it what you will, but the new, 2nd generation William Optics RedCat 51 refractor is an affordable, compact, light-weight Petzval refractor with razor sharp optics in a compact and rugged package. It’s ideal for ultra-wide-field imaging of the deep sky and for terrestrial imaging of birds, landscapes, and wildlife.
All New Adjustable Flat6AIII Field Flattenerر.ع.88.810 Add to cart
This very elegant 2″ reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors. WO Flat 6AIll will provide good illumination and flat field across 97% of full frame sized sensors.
Zenithstar 81 APO refracting telescopeر.ع.340.700 Select options
This Zenithstar 81 APO refracting telescope is a great addition to the ranks of refracting telescopes that are devoted to providing fantastic astro-images through high-quality optics and chromatic aberration correction, a great addition to the ranks of telescopes that are devoted to providing fantastic astro-images through high-quality optics and chromatic aberration correction. Not only does the Zenithstar 81 APO refracting telescope have good optics, but it’s also easy to use and very portable. Equipped with FPL-53 glass, this apochromatic refractor provides beautiful colors and clear details. Zenithstar 81 APO telescopes have an image circle that works well with Full Frame cameras, when paired with the included 6AIII flattener, by minimizing vignetting and image shifting.
Sony T Ring Adapter for E-Mount Space Grayر.ع.16.600 Add to cart
This T mount from William Optics is made to work with Sony E DSLR Cameras. It is expertly machined and upholds William Optics knack for quality, aesthetics, and function. It includes a 48mm thread to help secure the T Mount onto the Sony camera, and it weighs only 0.2lb! This T Mount is in the color, Space Gray.
Red dot finder Kit with Vixen Style Mounting Baseر.ع.41.510 Add to cart
All New Vixen style Red dot finder Kit! Good Quality. This very practical Red Dot Finder (R.D.F.) comes with a handy, quick-release bracket included in the price. Centering your objects in the sky has never been easier! Look through the finder with one eye leaving the other open, and you will see one of the four selected LED shapes in the sky.
Zenithstar 61II APO (Gold)ر.ع.229.700 Add to cart
The William Optics Zenithstar 61 II APO features an air-spaced doublet lens with fully multi-coated optics and an Ohara FPL-53 ED glass element for sharp, high contrast images virtually free of false-colour. Provides high resolution images when used for astrophotography and is a convenient ultra-portable telescope for visual astronomy (wide-field). Comes with free soft carry case.
All New Gran Turismo 71 APO refractor telescopeRead more
The William Optics Gran Turismo 71 Apo is the new jewel of the apochromatic refractor world. The new GT71 Optical Tube Assembly (OTA) features a 3-element objective using high-quality FPL-53 extra-low dispersion glass that reduces any secondary spectrum to an unbelievable degree.
15.7″ Losmandy-Style Dovetail (Gold)ر.ع.44.800 Add to cart
This heavy-duty William Optics D-Series Universal Dovetail Plate will fit a vast array of refractors. The dovetail is made of a durable gold anodized aluminum for a chic, modern finish. Measures 15.75″ in length and is compatible with refractors from William Optics as well as Celestron, Meade, Takahashi, Stellarvue, Skywatcher or any other mount suitable for Losmandy-style dovetails. Mounts to any scope without difficulty. Screws not included.
New Adjustable Flat61 for Z61ر.ع.84.500 Add to cart
Getting the best images when taking photographs of the night sky can be a tricky task. There are magnificent telescopes that make this task a little easier, and William Optics has provided a way to take this aid one step further. This William Optics Flat61 Field Flattener is specifically made for the Zenithstar 61 telescopes. They provide a flat field, an image circle of 43mm, for those who wish to do astrophotography.
SWAN 9mm Eyepiece (1.25 inch)ر.ع.38.000 Add to cart
Introducing SWAN (distributed by William Optics) eyepieces, for your most demanding visual observations. Features an internally baffled barrel, all lenses’ edges and internal spacers blackened, and fully multicoated. Unforgettable views of star clusters and the moon at 72 deg. F.O.V. A premium eyepiece at a fraction of the cost it’s worth. This unit has a focal length of 20mm.
All New Slide-base UniGuide 32mm Guide Scopeر.ع.43.000 Add to cart
The 32 mm UniGuide guide scope from William Optics has a focal length of 120 mm and a focal ratio of f/3.75. The guide scope comes with a Vixen-style slide-base. This base is compatible with the William Optics saddle carry handle and the Cat Handle bar (neither handles are included).
Sony T Ring Adapter for E-Mount – Blackر.ع.17.500 Add to cart
This T mount from William Optics is made to work with Sony E DSLR Cameras. It is expertly machined and upholds William Optics knack for quality, aesthetics, and function. It includes a 48mm thread to help secure the T Mount onto the Sony camera, and it weighs only 0.2lb! This T Mount is color black.