Parts and Accessories

Adapts 3.5" William Optics focusers to a 2" receiver Features the secure, self-centering RotoLock mechanism Connects via M92 x 1 male threads Adds...

30mm Optical Length Connects M80 x 0.75 to M54 x 0.75 Threads For William Optics Flat68III & Flat7A Flatteners Description FAQ Specificatio...

Adds 67 mm of optical length to your imaging train Features M92 male and female threads for a secure connection Designed for William Optics FLT 11...

4" extension tube designed for William Optics FLT Series Provides additional back focus for various optical setups ...

Connects M48 (2-inch) Threaded Correctors to Canon EOS Cameras Wide M48 Aperture Eliminates Vignetting on Full-Frame Sensors Adds a Precise 10.6 m...

Connects M48-threaded correctors to Canon EOS R mirrorless cameras Wide 48mm aperture minimizes vignetting on full-frame sensors Precisely machine...

Connects M48-threaded correctors to Fujifilm X-mount (Fuji FX) mirrorless cameras Wide 48mm aperture minimizes vignetting on APS-C sensors Precise...

Connects M48 Accessories to Nikon F-Mount Cameras Precisely machined 8.2 mm optical length achieves exact 55mm back focus when combined with camer...

Connects M48 accessories to Nikon Z-mount mirrorless cameras Precisely machined 38.4 mm optical length achieves exact 55mm back focus when combine...

Connects Pentax K-Mount Cameras to M48 Accessories Precisely machined 9.3 mm optical length achieves exact 55mm back focus when combined with came...

Connects Sony E-mount cameras to M48 accessories Provides a precise 36.7 mm optical length M48 (female) threads reduce vignetting on large sensors...

Provides a precise 54mm of optical length Connects the FLAT68III flattener to M48 imaging trains Designed specifically for the William Optics Gran...

Adds 360° of smooth camera rotation Designed for William Optics 2.5" focusers Secure M63 male and female threads Maintains optical alignment durin...

Designed specifically for the William Optics FLT132 refractor Ensures a precise, secure fit for the optical tube Soft-sided construction for light...

50mm Inner Diameter Solid Aluminum Construction Anodized Blue Finish 1/4"-20 Threaded Mounting Holes Weight: 4.9 oz (140 g) Description FAQ Spe...

Length: 107 mm Integrated Mini-Vixen Style Saddle Weight: 0.12 kg / 0.26 lbs Designed for William Optics Cat Series Telescopes Adds a carrying han...

Dual Saddle Plate Design Accepts Vixen-Style Dovetails Accepts Losmandy D-Style Dovetails Precision CNC-Machined Construction Durable Anodized Fin...

210 mm total length for balancing flexibility Dual-profile fits both Vixen-style and Arca-Swiss clamps 41.5 mm width provides a stable mounting su...

Length: 245 mm Weight: 0.33 kg / 0.72 lbs Dovetail Compatibility: Vixen & Arca-Swiss CNC-machined construction Description FAQ Specificatio...

Securely connects the Flat4 Field Flattener to the draw tube Designed for William Optics FLT 98, 110, 132, and 152 models Compatible with telescop...

Connects Flat4 Flattener to 3" V-Power Focuser Compatible with William Optics GT102 & FLT 132 Engineered for 2017 Telescope Models Secure Thre...

Designed exclusively for the William Optics RedCat 51 astrograph Corrects image plane tilt for perfectly round stars across the frame Adds only 12...

290 mm Extended Length for Balancing Standard Vixen-Style Dovetail Profile Weighs 0.64 kg (1.42 lbs) 90 mm Wide Platform for Stability Descript...