SV240
SVBONY
~$138.85
1 stores
In stock
The SVBONY SV240 is a multi-narrowband filter designed for urban astrophotography, isolating Ha, OIII, and H-Beta emissions from background light pollution while being ideal for astronomers using color cameras who prefer not to switch to monochrome setups. Unlike typical dual-band filters with 7nm bandgaps, it features 24nm for OIII, 20nm for Ha, and 115nm in the near-infrared region. The filter improves image signal-to-noise ratio and contrast by capturing signal in visible bands and near-infrared regions while maintaining good color balance and ease of post-processing. It is suitable for photographing galaxies, reflection nebulae, emission nebulae, star clusters, and other deep-sky objects.
Specifications
| OIII Bandpass (FWHM) | 24 |
| Filter Weight (2 inch version) | 13.6 g |
| Working Wavelength Range | 300 |
| Filter Input Diameter (2 inch) | 43.90 mm |
| Recommended Sensors | IMX585, IMX464 |
| NIR Bandpass (FWHM) | 115 |
| Filter Frame Diameter (2 inch) | 50.73 mm |
| Filter Output Diameter (2 inch) | 44 mm |
| Thread Height | 2 mm |
| Filter Type | Multi-Narrowband |
| Optical Density Cutoff | ≥OD4 |
| Suitable for OSC Cameras | ✓ |
| Ha Bandpass (FWHM) | 20 |
| Light Pollution Resistance | Bortle 1-8 |
| Thread Diameter (2 inch) | 47.77 mm |