Used filter in excellent condition.

• This dual narrow band telescope filter properly designed for astrophotography both in light polluted environment;
• Take color images without needing to combine images with multiple filters. Useful for imaging emission nebulae, planetary nebulae and supernova remnants;
• Designed to sharply cut off the inference of artificial light from sodium vapor or mercury vapor street lights and other unwanted disturbance like sky glow.

SV220 1.25 inches Dual-Band Nebula Telescope Filter for Astrophotography

The filter is suitable for those astronomers who are already imaging using color cameras, and don't want to transition to a monochrome camera set. Be the efficient astronomer with SV220 Dual Band Filters.

This SV220 telescope filter is also a fantastic solution to dealing with light pollution that is becoming more and more prevalent.

The filter has relatively wide bandpasses, especially at the OIII wavelength (500.7nm width).