Dual-Narrowband Filters
Dual-narrowband filters are designed for astrophotographers who want to capture stunning nebula images from light-polluted skies. Combining two narrowband wavelengths, typically hydrogen-alpha and oxygen-III, into a single filter, they maximize contrast and detail in one shot. Ideal for both beginner and experienced imagers using color or mono cameras.
SVBONY SV220 Dual-Band Filter
- Filter Type: Dual-narrowband combining H-Alpha (656nm) and O-III (500n...
- Compatibility: Designed for one-shot color (OSC) cameras including DSLRs...
- Size: 1.25-inch standard thread mount, fits most 1.25-inch focu...
Svbony SV240 Multi-Bandpass Filter
- Filter Type: Multi-bandpass with NIR near-infrared light pollution sup...
- Size: 2-inch standard format, compatible with most 2" eyepiece ...
- Target Subjects: Nebulae, galaxies, and deep sky objects in light-polluted...
SVBONY SV115 O-III Filter
- Filter Type: O-III narrowband targeting doubly ionized oxygen emission...
- Bandwidth: Narrowband passband designed to block broadband light pol...
- Size: 2-inch barrel format with standard threaded cell for wide...
Optolong L-Extreme Dual Narrowband Filter
- Filter Type: Dual narrowband passing H-Alpha (656nm) and O-III (500nm)...
- Size: 1.25-inch threaded format, compatible with standard eyepi...
- Transmission: Greater than 90% peak transmission at target wavelengths ...
SVBONY SV226 Dual Magnetic Filter Holder
- Compatibility: Designed specifically for the SVBONY SV226 M42 standard t...
- Retention System: Dual magnetic mechanism holds filters securely in place d...
- Filter Capacity: Holds two filters simultaneously, enabling quick comparis...
Optolong L-Ultimate 2 Filter
- Filter Type: Dual narrowband (H-alpha 656nm and OIII 500nm), designed ...
- Bandpass: Ultra-narrow 3nm FWHM passband on both H-alpha and OIII c...
- Compatibility: Works with DSLR, mirrorless, and dedicated astronomy came...
Alstar 2" O-III Narrowband Filter
- Filter Type: O-III narrowband, isolating the 500.7nm doubly ionized ox...
- Size: 2-inch diameter, compatible with standard 2-inch eyepiece...
- Best Objects: Veil Nebula, Ring Nebula, Dumbbell Nebula, Orion Nebula, ...