Imaging Train

Motorized rotation with 0.02° step resolution Adds only 16.5 mm of backfocus 48 mm clear aperture for full-frame sensors ASCOM and ASIAIR compatib...

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 ...

Large 12mm x 12mm prism for brighter guide stars M68, M54, and M48 connection options 17.5mm thickness preserves 55mm backfocus Designed for ZWO A...

Converts female M48x0.75 threads to female M42x0.75 T-threads Adds 0mm of optical path length to the imaging train Standard accessory with most ZW...

Eliminates Differential Flexure Reduces Overall System Weight Includes 1.25" Guide Camera Holder 5mm T2 Extender for Spacing Adjustment M42 and M4...

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...

Precisely control rotational alignment and spacing Available in 0.3mm, 0.5mm, and 1.0mm thicknesses Standard M48 x 0.75 (2-inch filter) threading ...

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...

Corrects sensor tilt for sharp stars edge-to-edge Eliminates Newton's rings in H-alpha solar imaging Adds only 11 mm of back focus to the imaging ...

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

Integrated helical focuser for precise guide camera adjustment Rigid, single-path design eliminates flexure from a separate guidescope Locking thu...

30mm Aperture 150mm Focal Length (f/5.0) Triplet Apochromatic (APO) Lens Design Precise Helical Focuser Lightweight at 0.77 lb. Description FAQ...

Connects M54 Filter Wheels to M48 Accessories Adds Only 2 mm to Optical Path Maintains 55 mm Back Focus Standard Knurled Edge for Secure Grip Desi...

Adds a precise 16.5mm of optical path length Connects male M42 (T2) threads to female M48 threads Essential for achieving standard 55mm back focus...

APM Image Master Mini Guiding Scope 50 mm - Deluxe Finder ScopeThe compact lightweight mini Telescope - perfect for guiding, searching or spottingT...

Adds exactly 21mm of spacing to an M42 optical train M42x0.75 female threads on one side, male threads on the other Machined aluminum with a black...

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

Securely attaches SLR/DSLR cameras to Schmidt-Cassegrain telescopes Enables prime focus photography for high-resolution imaging Threads directly o...

32mm Aperture 128mm Focal Length (f/4) Contains One ED Glass Element Precision Helical Focuser Weighs only 303g Description FAQ Specifications ...

Thread Compatibility Durable Construction Precision Engineering Lightweight Des...

Precisely adjusts M68 back focus Available in 0.3mm, 0.5mm, and 1mm thicknesses Enables fine rotational adjustment of cameras and accessories Thin...

Replaces the ZWO EFW to achieve 55mm back focus with the OAG-L Adds only 15 mm of optical length to the imaging train Features an internal thread ...

Connects M48 Female Threads to M42 Male Threads Adds Only 5.3mm of Optical Path Length Standard 2" Filter Thread (M48x0.75) to T-Thread (M42x0.75)...

Attaches DSLR cameras to 8" EdgeHD optical tubes Threads directly onto the rear cell for a secure connection Enables prime focus photography for t...