Products

Pier System designed for telescopes and instruments Offers high stability and adjustability Description In the Box Warranty The...

Designed specifically for the William Optics ZenithStar 61 I Provides a secure, rigid mounting point for the optical tube Features an integrated C...

Precise 90mm Inner Diameter Solid, All-Metal Construction Secures Optical Tube for Astrophotography Requires User Measurement for Fit Confirmation...

Provides critical clearance for cameras and filter wheels Improves balance options for complex imaging trains Designed for William Optics Universa...

90 kg (198 lbs) Loading Capacity Lightweight 7 kg Aluminum Alloy Construction 100 mm (4") Diameter Pillar for Maximum Rigidity Includes 3/8" Adapt...

111mm Aperture 7-Element Astrograph 528mm Focal Length at a fast f/4.8 45mm Image Circle for Full-Frame Sensors William Optics Internal Focus Desi...

181mm Aperture, 998mm Focal Length Fast f/5.5 Focal Ratio 7-Element Optical Design with 3 Super ED Glass Elements 55mm Corrected Image Circle 4.1-...

68mm Aperture 7-Element Astrograph Fast f/3.8 Focal Ratio 260mm Focal Length 48mm Full-Frame Image Circle Weighs only 2.98 kg (6.57 lbs) WIFD Focu...

Provides precise focusing for Ritchey-Chrétien telescopes Includes an optional 0.8x reducer flattener for improved image quality Description...

Red dot finder for easy target acquisition Includes Vixen-style mounting base for versatile attachment Description The William...

Compact Apochromatic Refractor Petzval-like Optical Design for Flat Fields William Optics Internal Focus Design (WIFD) CNC-Machined Aluminum Body ...

61mm Aperture Petzval-like Astrograph Fast f/4.9 Focal Ratio WIFD (William Optics Internal Focus Design) Focuser Requires No Backfocus Calculation...

Apochromatic Petzval-like Optical Design WIFD (William Optics Internal Focuser Design) Integrated Bahtinov Mask in Dust Cap Included M48 Camera Ad...

Converts Astronomical Telescopes for Terrestrial Viewing 90-Degree Viewing Angle Accepts Standard 1.25" Eyepieces Anti-Reflection Coated BAK7 Pris...

Length: 90 mm Dovetail Type: Vixen-Style Weight: 230 g (0.51 lbs) Full-Length, Non-Marring Clamp Signature William Optics Red Anodized Finish D...

Connects M50.8 Male to M48 Female Threads Adds 13.8 mm of Optical Length Female Thread: M50.8 Male Thread: M48 Signature William Optics Gold Anodi...

Securely holds guidescopes and finders with a 50mm tube diameter Slide-base design allows for fore-and-aft adjustment for precise balancing Essent...

Seamlessly integrate with your existing astrophotography gear. Ensures stable attachment of your telescope to your mount. Description In th...

32mm Doublet Objective Lens Fast f/3.75 Focal Ratio 120mm Focal Length Integrated Vixen/Synta-Style Slide-Base Ultra-Lightweight at 0.23 kg (0.51 ...

50mm Aperture Doublet Lens 200mm Focal Length (f/4.0) Integrated 1.25" RotoLock Adapter Slide-Base for William Optics Handles Total Weight: 0.5 kg...

1.25-inch eyepiece with 55° apparent field of view 12.5mm focal length for medium-high magnification viewing Description The W...

Dual-Bandpass for H-Alpha and Oxygen-III Suppresses Urban Light Pollution Ion Beam-Assisted Deposition (IBAD) Coatings High Durability and Easy-to...

48mm (M48) Filter Size Multi-Bandpass Light Pollution Suppression Passes H-α, H-β, and OIII Emission Lines Schott B270 Optical Glass Substrate STC...

Connects SBIG STL-11000 Series CCD Cameras Attaches to P-FLAT68 Field Flatteners via M80 Female Thread Provides a Precise 69 mm Optical Path Lengt...