Vaonis Cosmic Filters Bundle for Vespera Smart Telescopes (CLS + Dual Band)

"Elevate your Vespera astrophotography with the Vaonis Cosmic Filters Bundle — a two-filter set covering the two most essential night-sky scenarios: light-polluted urban observing and high-contrast deep-sky imaging.

The City Light Suppression (CLS) Filter blocks the sodium and mercury wavelengths emitted by urban streetlighting and undesirable natural light sources such as atmospheric oxygen radiation. It passes the key wavelengths of celestial objects (445–525 nm and 640–690 nm), increasing contrast between stars, nebulae, and the background sky — making it indispensable for backyard astronomers in cities and suburbs.

The Dual Band Filter is a high-performance narrowband interference filter that isolates the Hydrogen Alpha (H-alpha, 656.3 nm) and Oxygen III (O-III, 500.7 nm) wavelengths at 12 nm bandwidth each. This dramatically enhances the visibility and contrast of emission nebulae regardless of sky conditions, revealing detail that a broadband filter simply cannot.

Both filters attach and detach in seconds with no tools required, and are compatible with all current Vespera models."