Products

For Newtonian & Cassegrain Telescopes Fits Standard 1.25" Focusers Enables Precise Optical Alignment Visual Crosshair for Centering Improves I...

Designed to fully illuminate APS-C sensor on most APO refractors. The SharpStar 2" field flattener has a M42x0.74 male thread to connect the camera...

Designed to fully illuminate full frame sensor on most APO refractors. The SharpStar 2.5" field flattener has a M69 male thread to connect the came...

Corrects coma in Newtonian reflectors from 150mm to 600mm aperture Optimized for fast focal ratios from f/3 to f/6 Provides a 44mm image circle fo...

260mm (10.2") Aperture Aspherical Primary Mirror 1300mm Focal Length at a fast f/5 Focal Ratio Massive 80mm Corrected Image Circle for Large Forma...

310mm Aperture Aspherical Primary Mirror 1178mm Focal Length at a Fast f/3.8 55mm Corrected Image Circle for Medium Format Sensors Triplet Correct...

100mm Aperture f/5.5 Focal Ratio / 550mm Focal Length Sextuplet Air-Spaced APO Optical Design 36mm Corrected Image Circle 4.3kg Net Weight Desc...

The Alpy 600 and Demetra software (developed by Shelyak Instrument for the ALPY 600 spectrograph) will allow you to produce spectra scientifically...

The wavelength calibration of a spectrum requires to observe the spectrum of a calibration light – that is of a light with numerous emission lines ...

The spectroscope Alpy 600 can be used on table or in laboratory: in this case, just put the light source to be observed in front of the slit. But w...

The minimum recommended distance (in mm from the sensor to the tip of the nosepiece where the Star Analyser 100 screws in) is 4x the camera pixel s...

The Star Analyser 100 is a high efficiency 100 lines/mm transmission diffraction grating, blazed in the first order. It is mounted in a standard 1....

Analyser 200 is a high efficiency 200 lines/mm transmission diffraction grating, blazed in the first order. It is mounted in a standard 1.25 inch d...

This is a spare part to replace the included eyepiece holder with Sky-Watcher dobsonians. It securely holds standard 2" eyepieces. Requires a 50mm...

This is a spare part to replace the included eyepiece holder with Sky-Watcher dobsonians. It securely holds standard 2" eyepieces. Requires a 57mm...

Powers most Sky-Watcher GoTo mounts from a standard wall outlet Provides continuous, reliable power for long observing or imaging sessions Elimina...

Works on AZ-EQ-5, EQ6 and EQ6-R mounts. 7.5lbs.

Hybrid Alt-Azimuth and German Equatorial mount design 30 lb payload capacity for visual and imaging Freedom Find™ dual-encoder system allows manua...

Adds 6.3 inches of height to the Sky-Watcher AZ-EQ5 mount Prevents long optical tubes from colliding with tripod legs Improves observing comfort f...

A Polar scope for AZ-EQ5. (does not include illuminator)

11 lb (5 kg) Counterweight Designed for the Sky-Watcher AZ-EQ6 Mount Enables Balancing of Heavier Telescope Payloads Durable, High-Quality Finish ...

Dual Equatorial (EQ) and Alt-Azimuth (AZ) functionality 44 lb payload capacity for imaging or dual visual setups Belt-driven stepper motors for hi...

The Sky-Watcher AZ-GTe series is for anyone looking for a small, powerful mount. Weighing just 8.6 pounds, complete with pier extension and tripod,...

11 lb payload capacity in a 2.6 lb mount head GoTo pointing and tracking controlled via WiFi Freedom Find™ dual-encoder system for manual movement...