Products

Two dual-band filters for four narrowband channels with color cameras; also usable with mono cameras Ha & OIII Filter: 3nm FWHM at 656.3nm and...

Dual-band filter passing Sulfur-II (672.4nm) and Hydrogen-beta (486.1nm) 3.5nm (+/-0.5nm) FWHM on both lines Peak transmission of 90% (SII) and 85...

2-filter set captures four narrowband channels (Ha, OIII, SII, H-beta) with one-shot color cameras Ha/OIII filter isolates H-alpha (656.3nm) and O...

Dual line-pass filter for Hydrogen-alpha (656.3nm) and Oxygen III (500.7nm) Tight 5nm FWHM bandpass for both emission lines Peak transmission of 9...

Dual 5nm bandpasses for Hydrogen-alpha (657.8nm) and Oxygen-III (502.2nm) Optimized for high-speed imaging systems from f/2.2 to f/3.6 Peak transm...

Dual-bandpass 5nm design for one-shot color (OSC) cameras Passes Sulfur-II (672.4nm) and Hydrogen-Beta (486.1nm) emission lines Peak transmission ...

Isolates the Calcium K-line (CaK) at a central wavelength of 393.3nm Narrow 3nm bandpass designed to maximize contrast for high-resolution solar i...

Isolates the 889nm methane absorption band for planetary imaging 20nm wide bandpass centered at 889nm, in the near infrared Average transmission a...

50mm extension tube for more back focus Offered for the Antlia Solar Discover 5Å CaK assembly Helps reach focus when the 5Å CaK assembly is used w...

70mm extension tube for more back focus Helps reach focus when the 5Å CaK assembly is used with a Barlow lens Offered for the Antlia Solar Discove...

Isolates the H-alpha emission line at 656.3nm Ultra-narrow 2.5nm FWHM bandpass to maximize contrast Peak transmission of >=95% Deep >=OD5 (0...

Passes the H-beta (486.1nm) and both OIII (495.9nm, 500.7nm) emission lines Peak transmission greater than 90% at 486.1nm, 495.9nm, and 500.7nm OD...

For high-resolution solar imaging with refractors only: aperture no larger than 120mm or f/5.5 or longer 35mm Herschel prism: a design well known ...

Passes infrared light with wavelengths longer than 685nm Reduces the effect of atmospheric seeing for sharper planetary images Constructed from 2m...

Passes infrared light with wavelengths longer than 850nm Recommended for planetary photography, where seeing has much lower impact at long wavelen...

Complete LRGB (Luminance, Red, Green, Blue) Filter Set High Peak Transmission: ≥97% for L, R, G and ≥95% for B channels Deep Out-of-Band Blocking ...

Four-Filter LRGB Complement Engineered for Monochrome CMOS/CCD Cameras Anti-Reflection Coated Optics Available in 5 Mounted and Unmounted Sizes ...

Five-filter LRGBR+ Dark Series set Full-spectrum 390nm to 1000nm spectral coverage Dedicated R+ filter captures near-infrared signal from 700-1000...

Isolates the 500.7nm Oxygen-III emission line 2.5nm (+0.3/-0.1nm) FWHM ultra-narrowband design >=92% peak transmission at the central wavelengt...

Includes 4 Sloan Digital Sky Survey (SDSS) photometric filters: g', r', i', z' Peak transmission of 98% for r', i', z' filters and 95% for the g' ...

Passes four key nebula bands: H-alpha, S-II, O-III, and H-beta Peak transmission of >92% for critical emission lines Broad bandpass designed to...

Designed specifically for the Seestar S50 Pro Dual-band filter passes H-alpha and OIII emission lines Narrow 5nm bandpass for high-contrast imagin...

Complete SHO narrowband filter set with a 7nm bandpass Peak transmission greater than 90% for maximum signal Out-of-band blocking of OD4 (0.01%) m...

Isolates Sulfur-II emission at 671.6nm and 673.1nm Ultra-narrow 2.5nm FWHM bandpass Peak transmission of >=95% Out-of-band blocking at >=OD5...