Products

Complete 5-Filter Set: Luminance, Red, Green, Blue, and H-alpha H-alpha Bandwidth Options: Available in 3nm, 5nm, or 8nm variants Substrate Thickn...

Standard I-Bessell filter for scientific photometry Durable sputtered hard coatings on a single substrate 3.0 mm substrate, parfocal with other Ch...

Reveals high-altitude atmospheric features on Jupiter and Saturn Targets the methane absorption band Parfocal with other 3.0mm Chroma astronomy fi...

Blocks common spectral lines from metal-halide and vapor lamps Designed for balanced color in broadband imaging Designed for telescopes at f/4.0 a...

Complete four-filter Luminance, Red, Green, and Blue set Engineered for systems f/4.0 and slower Parfocal 3.0 mm thick substrates Transmitted wave...

Captures the full visible spectrum for high-resolution LRGB imaging 3.0 mm substrate, parfocal with other Chroma astronomy filters (except LoGlow)...

Isolates the 500.7 nm OIII emission line 3 nm bandpass for high contrast Designed for f/4.0 or slower optical systems 3.0 mm thick, single-substra...

Isolates the 500.7nm OIII emission line 5nm bandwidth (FWHM) 3.0mm thick single substrate for parfocal use Transmitted wavefront better than 0.25 ...

Isolates the 500.7nm OIII emission line 8nm bandpass for high signal throughput Designed for f/4.0 or slower; measured 99.7% peak transmission at ...

Isolates the 500.7 nm OIII emission line 3 nm bandpass for high-contrast imaging Optimized for f/2.8 to f/3.6 optical systems Measured 99.2% peak ...

Standardized R-Bessell band for scientific photometry 3.0 mm thick substrate, parfocal with other Chroma astronomy filters (except LoGlow) Transmi...

Captures the red portion of the visible spectrum for LRGB color imaging 3.0 mm substrate, parfocal with other Chroma astronomy filters (except LoG...

Central Wavelength: 672.4 nm (Sulfur-II) Bandwidth (FWHM): 3 nm Substrate Thickness: 3.0 mm Parfocal: Yes, with other Chroma astronomy filters...

Bandwidth: 5 nm Central Wavelength: 672.4 nm Target Emission: Sulfur-II Doublet (671.6 nm / 673.1 nm) Substrate Thickness: 3.0 mm Parfocal: Y...

Isolates the 672.4 nm SII doublet emission lines 8 nm bandpass optimized for high signal throughput Designed for f/4.0 or slower; measured 98.2% p...

Isolates the 672.4 nm SII emission line doublet 3 nm bandpass for high contrast Optimized for f/2.8 to f/3.6 optical systems Maintains 98.6% peak ...

Bessell U-Band Photometric Filter 3.0 mm Substrate Thickness Parfocal with other Chroma Astronomy Filters (except LoGlow) Transmitted Wavefront be...

Complete 5-filter Bessell UBVRI photometric set (Johnson-Cousins system) 3.0 mm thick substrates, parfocal with other Chroma astronomy filters (ex...

Standard V-Bessell photometric filter for scientific measurement 3.0 mm thick substrate ensures parfocality with other Chroma filters Transmitted ...

55mm back focus Works with f/5 to f/7 refractors Compatible with APS-C size cameras or smaller. Accepts 2" filters Optimized for refractors with...

55mm back focus Works with f/5 to f/7 refractors Compatible with APS-C size cameras or smaller. Accepts 2" filters Optimized for refractors with...

This versatile 2" T2 Nosepiece adapter allows you to easily connect your T2-threaded accessories to any standard 2" telescope focuser. Made from h...