Products

140mm Aperture 910mm Focal Length f/6.5 Focal Ratio Triplet Air-Spaced APO Objective with Two ED Elements 0.83 arc-seconds Resolution 10.1kg Net W...

150mm Aperture Hyperbolic Newtonian Astrograph 420mm Focal Length f/2.8 Focal Ratio 44mm Full-Frame Image Circle 55mm Back-Focus from M48x0.75 Thr...

SHARPSTAR's newly developed ultra-short focal ratio paraboloid Newtonian reflector 20032PNT was launched, which filled a domestic gap in this fie...

Reduces telescope focal ratio to f/4.6 Converts focal length to 230mm Quadruplet optical design with field flattening Standard 55mm back focus req...

50mm Triplet Apochromatic Objective 275mm Focal Length f/5.5 Native Focal Ratio Includes Two Extra-Low Dispersion (ED) Glass Elements 1.07kg Gross...

Converts the SharpStar 61EDPH to a fast f/4.5 astrograph Provides a 44mm image circle for full-frame sensor coverage Three-element air-spaced opti...

Aperture: 61mm Focal Ratio: f/5.5 Focal Length: 335mm Image Circle: 44mm Weight: 1.9kg (with rings) Description FAQ Specifications In the Box D...

Converts 76EDPH to a fast f/4.5 focal ratio Produces a 44mm image circle for full-frame sensors Standard 55mm back focus for easy camera integrati...

0.8x Focal Reduction for SharpStar 94EDPH Creates a Fast f/4.4 Optical System 4-Element Optical Design 50mm Corrected Image Circle Standard 55mm B...

Aperture: 94mm Focal Ratio: f/5.5 Focal Length: 517mm Optical Design: Triplet APO with Two ED Elements Weight: 3.3KG Description FAQ Specificat...

For Newtonian & Cassegrain Telescopes Fits Standard 1.25" Focusers Enables Precise Optical Alignment Improves Image Sharpness and Contrast ...

The SharpStar 2" field flattener corrects field curvature for astrophotography. SharpStar does not publish its back focus, sensor coverage or camer...

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

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 Focal Ratio 55mm Image Circle, Optimized for Medium Format 3-inch Tri...

100mm Aperture f/5.5 Focal Ratio / 550mm Focal Length Sextuplet Air-Spaced APO Optical Design 36mm Corrected Image Circle 4.3kg Net Weight 3.4" Ra...

0.63x Focal Reduction Factor Transforms f/10 Systems to f/6.3 Apochromatic Triplet Optical Design Standard 2-inch (50.8 mm) SCT Thread Optimized f...

10 µm Slit Width High-Reflectivity Mirror Finish Compatible with the Shelyak Alpy 600 Compatible with Shelyak UVEX Spectrographs Compatible with S...

Powers multiple devices from a single 12V/7A source Reduces cable clutter around the telescope Includes a 4-way cable with mixed connector sizes T...

10m Fiber Length 50µm Core Diameter High-OH Fiber for UV-VIS Transmission (380-800nm) FC-type Connectors (Both Ends) <0.5dB Signal Attenuation ...

50µm Core Diameter 20 Meter Length Less than 0.5dB Attenuation 380-800nm Spectral Range FC-Type Connectors (Both Ends) Description FAQ Specific...

50µm Core Diameter Object Fiber 5m Cable Length FC Type Connectors (Both Ends) 380nm - 800nm+ Wavelength Range Numerical Aperture: 0.22 Less than ...

Designed for the Shelyak Instruments UVEX Spectrograph Suppresses 2nd Order Near-Infrared (IR) Spectral Contamination Ensures Cleaner, More Accura...