Svbony SV227 Telescope Filter 2", SII 5nm Narrow-Band CCD Filter, Reduce Light Pollution and Sky Glow, Improve Contrast and Detail for Deep Sky Astrophotography
Special Features
- The SV227 SII filter blocks infrared wavelengths from 700nm to 1000nm so you don't need a separate IR-Cut filter
- 2 inch mounted; the filter can thread directly into the 2 inch barrel of your telescope eyepiece
- 300-1000nm wavelength range; the SVBONY SII 5nm 2" Filter transmits a 5nm bandwidth of light that is centered at 672nm
- SVBONY SII narrow band filter reduces other transmissions; including wavelengths of light that are responsible for light pollution
- The narrow bandwidth and high transmission rate of this filter will make you experience a major boost to contrast
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