Showing 97–120 of 131 results
William Optics iOptron Skyguider Pro Dec Adapter This iOptron Skyguider Pro dec adapter from William Optics is a great tool that will give two functions. First, and foremost, the adapter will allow us
The William Optics iOptron Skyguider Pro Dec adapter is a functional tool that can be used with the William Optics Vixen Style Clamps for an elevated astronomical experience.
Finder mounting rings 50 mm. Weight 260 grams. Suitable for up to 50 mm finder tube.
Use this adapter for attaching a mirrorless camera to various William Optics scopes and flatteners. M48 thread.
STC Astro Duo-Narrowband filter can reduce the interference from artificial lighting in the city ,and enhance the wave length of Hα and OIII.
IBAD (Ion beam-assisted deposition) coating technology m
The STC Astro Multispectra Filter is designed to suppress common urban light pollution sources such as mercury, sodium, and certain LED emissions, while preserving key astronomical wavelengths includi
SWAN: a huge-lens rich-field eyepiece at a very reasonable price!
Fully multicoated advanced design for breathtaking and jaw-dropping 72 deg. F.O.V. views. Try it out on the Milky Way!
A Tr
Padded soft carry case for safely transporting and storing your telescope optical tube. Internal padding protects against bumps and scratches.
This Tripod Extrapadding Backpack is specifically designed for astro EQ mounts tripod, offering added support and protection for your equipment.
Thickness: 22mm
Size: approximately 20 × 20 × 67
Featuring durable Velcro straps for secure attachment, this pouch offers ample storage space to make your stargazing experience more convenient.
0.79x focal reducer and field flattener for compatible William Optics telescopes. 21% shorter focal length with flat-field correction for imaging.
0.79x focal reducer and field flattener for the William Optics Ultra-Cat 131 and compatible telescopes. Faster focal ratio with flat-field correction.
0.79x focal reducer and field flattener for the William Optics Cat 91. Faster focal ratio, wider field, and flat correction edge-to-edge.
The William Optics UltraCat108 is a cutting-edge 108mm apochromatic refractor designed for astrophotographers who demand top-tier performance. Featuring a 5-element advanced Petzval optical design and
The William Optics Ultra-Cat 131 is the flagship of the Ultra-Cat series, representing the pinnacle of wide-field astrophotography performance. Built around a large-aperture 131mm apochromatic optica
The Ultra-Cat 131 · 30th Anniversary Edition is a commemorative refractor celebrating three decades of William Optics craftsmanship and innovation. Built upon the acclaimed five-element advanced
The Ultra-Cat 56 is a high-performance 56mm apochromatic refractor , engineered for astrophotographers who demand exceptional portability without sacrificing optical precision, color accuracy, and
The Ultra-Cat 76 is a high-performance 76mm apochromatic refractor , designed for astrophotographers who demand exceptional clarity and true color accuracy .
With a 5-element advan
The Ultra-Cat 76 · 30th Anniversary Edition is a commemorative refractor celebrating three decades of William Optics craftsmanship and innovation. Built upon the acclaimed five-element advanced Petz
Enhance your astrophotography setup with the William Optics UniGuide 32mm f/3.75, a compact and versatile guide scope designed for precision and ease of use. This lightweight guide scope weighs only 2
Guidescope for William Optics telescopes. Compatible with QHY / ZWO mini cameras (cylinder model) only. Information Aperture: 50mm f/4 Weights: 515g Telescope connection: 1.25″
Guidescope for William Optics telescopes. Compatible with QHY / ZWO mini cameras (cylinder model) only. Information Aperture: 50mm f/4 Weights: 515g Telescope connection: 1.25″
Guidescope for William Optics telescopes. Compatible with QHY / ZWO mini cameras (cylinder model) only. Information Aperture: 50mm f/4 Weights: 515g Telescope connection: 1.25″
Finder mounting rings 50 mm. Weight 260 grams. Suitable for up to 50 mm finder tube. Includes vixen-saddle.