Average OD5: SV220 3nm Dual-Narrowband Filter offers a wide cutoff range of 300-1050nm; its transmittance is as low as 0.001%; effectively suppressing stray light and light pollution; improving signal-to-noise ratio for more detailed images
Minimal halo coating design: the 3nm H-Alpha and O-III Narrowband Filter features a minimal halo coating that reduces glare; ensuring sharp; detailed imaging of celestial objects with enhanced contrast; color accuracy; and reduced light pollution
85%+ transmission rate: the SV220 3nm H-Alpha and O-III Narrowband Filter offers high contrast and detailed imaging; enabling fast capture of deep-sky objects even in heavily light-polluted cities
USB port design; 1.8m USB cable length you can connect it your power bank or any other power source with a USB port; 1.9A to 2.0A input current; 5V input voltage
Universal lens warmer;Lens Warmer prevents telescope camera lens from fogging dew by warming up the lens on a camera or telescope; it also warming up water bottle and use as wrist knee strap
Description
SV220 H-Alpha and O-III 3nm Dual-Narrowband Filter enhances astrophotography by reducing stray light and light pollution, suitable for capturing deep-sky objects. SV172 Dew Heater Strip is a good partner during frigid winter temperatures, condensation, frost, dew or fog days with high humidity. It warmed up quickly, fast removed the condensation from your lens, and held an even warmness all night to keep your glass clear.