Products

Precise, tactile focus control for ZWO EAF Operate focuser without a computer or ASIAIR Variable speed for coarse and fine adjustments Ideal for v...

11 lb (5kg) Payload Capacity Bluetooth 5.0 and USB-C Connectivity Integrated 2500 mAh Rechargeable Battery Stepper Motor with 128:1 Gear Ratio Hig...

Enables temperature-based autofocus compensation for the ZWO EAF Plugs directly into the ZWO Electronic Automatic Focuser Maintains sharp focus as...

Introducing 5V EAF, the upgraded version of the original ZWO EAF. This electronic focuser enables precise, dynamic focus control for planetary and ...

Size of 59mm x 52mm x 41mm Step motor has 35mm diameter and 7.5deg step angle Reduction Ratio wit...

Handles imaging payloads up to 11 lbs (5kg) High-precision stepper motor with 128:1 gear ratio Single USB-C port for power and data ASCOM, INDI, a...

For 2″ threaded filters or 50.4mm ± 0.5mm unmounted filters. Easy to install on the telescope and the camera ...

For 2″ threaded filters or 50.4mm ± 0.5mm unmounted filters. Easy to install on the telescope and the camera ...

Holds seven 50mm square unmounted filters Designed for large-format sensors like the ZWO ASI461MM Pro Direct bolt-on connection for maximum rigidi...

For 1.25" or 31mm filters Easy to install on the telescope and the camera Filters are easy to ins...

5 filter positions for 1.25" or 31mm filters Adds 20 mm of back focus to the imaging train USB-C powered and controlled Redesigned housing for imp...

Holds 5 x 2" mounted or 50.4mm unmounted filters Adds only 20 mm of back focus to the imaging train Stepper motor for precise, repeatable filter s...

Holds seven 2" mounted or 50.4mm unmounted filters Adds 20 mm of back focus to the imaging train Stepper motor for precise, quiet filter selection...

Houses seven 36mm unmounted filters Adds a minimal 20mm of back focus to the imaging train 7-position carousel for LRGB, narrowband, or custom set...

Holds 8 x 1.25" or 31mm unmounted filters Adds 20 mm of back focus to the imaging train USB-powered stepper motor for precise filter selection Red...

Connects Canon EOS lenses to a ZWO 2" Electronic Filter Wheel M54x0.75 female thread for direct, secure attachment Enables filtered, wide-field as...

Connects Canon EOS lenses to ZWO Electronic Filter Wheels (EFW) Engineered for ZWO cameras with 6.5mm back focus (e.g., ASI1600) Establishes the c...

90mm Aperture 766mm Focal Length (f/7) 4-Element Apochromatic Optics Integrated Field Flattener 3-inch Dual-Speed Focuser 14.9 lb. Optical Tube We...

131mm Aperture 983mm Focal Length (f/7.5) 4-Element Petzval Optical Design 3-inch Dual-Speed Rack & Pinion Focuser 20.7 lb. Optical Tube Assem...

Reduces FF65 APO focal ratio to f/4.8 0.75x reduction factor for wider fields of view Standard 55mm back focus from the M48 thread Integrated M48x...

70mm Aperture 490mm Focal Length (f/7) 4-Element Quadruplet Optical Design Integrated Field Flattener 2.4" Dual-Speed Rack & Pinion Focuser 6....