Astrophotography

Fits Telescope Dew Shields from 105mm to 148mm Generates Clear Diffraction Spikes for Focusing Removes Subjectivity from Manual Focusing Lightweig...

120 mm Total Length Patented Handle and Saddle Design Mini-Vixen Dovetail Saddle Includes 50mm Guide Rings 44 mm Width Description FAQ Specific...

120 mm Length Integrated 50mm Guide Rings Mini-Vixen Style Top Saddle 44 mm Width Designed for Maximum Rigidity Description FAQ Specifications ...

Fits Dew Shield Diameters from 172mm to 235mm Generates Clear Diffraction Spikes for Precise Focusing Ideal for Astrophotography of Planets and De...

Fits Dew Shields with Outer Diameters from 243mm to 308mm Generates a Clear Three-Spike Diffraction Pattern for Precise Focusing Essential Tool fo...

Compatible with William Optics' slide-base guide rings Can be used to make William Optics telescopes portable Description The Wil...

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...