Astrophotography

Isolates Hydrogen-Alpha light at a 7nm bandpass Standard 1.25" threaded metal cell Blocks light pollution and moonlight for extreme contrast Multi...

7nm Bandpass at OIII Emission Line Isolates Planetary Nebulae and Supernova Remnants Standard 1.25" Threaded Filter Cell 1/4 Wave Optical Substrat...

Isolates the 672nm Sulfur-II emission line 7nm bandpass for high-contrast imaging Standard 1.25" threaded metal cell 1/4 wave polished substrate w...

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

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...

Threads into standard 1.25" filter holders and nosepieces Blocks unwanted ultraviolet (UV) and infrared (IR) wavelengths Functions as a primary Lu...