Products

Camera-based electronic collimator for reflecting telescopes 0.08 mm theoretical collimation accuracy Native M42 thread connection Includes M42-to...

Provides a 330 mm (13 in) evenly illuminated surface Designed for telescopes up to 315 mm (12-1/2 in) in aperture Fits over dew shields and OTAs u...

Three sizes to cover large apertures: 18x18, 24x24, or 30x30 inch diffusers 255 discrete brightness levels for precise flat-field calibration USB ...

170 mm uniform electroluminescent illumination panel 270-degree motorized arm for fully remote operation Fits telescope tubes and dew shields up t...

Five-piece set with 1/2, 3/4, 1, 1-1/2, and 3-inch lengths Creates any spacing from 0.5 to 6.25 inches in 1/4-inch steps Total combined extension ...

Adapts Optec DSI 3.5"x24tpi male threads to M72x1 male threads Maintains a wide 65.0mm (2.56 in) clear aperture Consumes only 3.8mm (0.15 in) of b...

Combines precision focusing and 360° rotation in a single unit Supports heavy imaging payloads up to 10 kg (22 lb) Maintains a 95 mm (3.75 in) cle...

Connects OPTEC-4300 dovetail to DSI 3.5" female thread Designed for the Optec Gemini Focusing Rotator Consumes only 2.5 mm (0.1 in) of back-focus ...

Consumes only 31.8 mm of back-focus at full retraction Provides 8.9 mm of total travel with 0.08 µm step resolution Supports up to a 9 kg (20 lb) ...

Achieve Critical Focus with Dim Stars Transmission >98.5% Across the Visible Spectrum λ/4 Transmitted Wavefront for Image Integrity 1.85mm B270...

Suppresses common sources of urban light pollution Enhances contrast for deep-sky objects Improves natural color balance in astrophotography Durab...

Suppresses common light pollution sources Average transmission greater than 90% on key nebula emission lines Blocks light pollution lines with >...

Blocks >99% of primary light pollution emission lines Achieves >90% average transmission on key nebula wavelengths Integrated 700-1100nm inf...

3nm Bandpass at 656nm Wavelength Maximizes Contrast for Emission Nebulae Extreme Rejection of Light Pollution and Skyglow Ion-Assisted, Anti-Refle...

Isolates the 656nm Hydrogen-alpha emission line 7nm bandpass for maximum contrast Blocks mercury vapor, sodium vapor, and natural skyglow Ideal fo...

H-alpha Filter: 7nm Bandpass centered at 656nm Oxygen-III Filter: 6.5nm Bandpass centered at 500nm Sulphur-II Filter: 6.5nm Bandpass Hubble Pa...

Complete SHO set includes H-alpha, OIII, and SII filters Ultra-narrow 3nm bandpass for maximum contrast Isolates 656nm Ha and 500nm OIII emission ...

Passes infrared light above 685nm Achieves greater than 90% average transmission Blocks wavelengths from 350-1050nm outside the passband 1.85mm th...

Dual-bandpass filter isolates H-Alpha, H-Beta, and OIII emission lines Peak transmission of over 90% for maximum signal Blocks over 99% of light p...

Includes L-eXtreme (H-alpha + OIII) and L-Synergy (SII + OIII) filters Enables Hubble Palette (SHO) imaging with one-shot color cameras Captures t...

Narrow dual-bandpass filter for H-Alpha and OIII Blocks >99% of light pollution emission lines Peak transmission of >90% at critical wavelen...

Dual Narrowband H-Alpha & OIII Filter Suppresses Mercury, Sodium & LED Light Pollution Optimized for Fast-Ratio Systems (RASA, HyperStar) ...

Two Optolong Clip-in Light Pollution Filters in One Kit L-Pro: Multi-Bandpass Suppression Across 380-750nm UHC: >99% Blocking of Mercury and So...