SV227 2" SII 5nm Filter Narrowband Filter sv205 camera The f/6 focal ratio strikes

The f/6 focal ratio strikes a perfect balance between wide-field views and resolving fine details

a high-precision astrophotography accessory designed to elevate your imaging experience

stored and transferred with fewer devices attached to the telescope

An included external temperature and humidity sensor provides continuous monitoring of relative humidity

SV227 2" SII 5nm Filter Narrowband Filter sv205 camera The f/6 focal ratio strikesThe SVBONY SV227 SII filter is a 2 narrowband astrophotography filter with a 5 nm bandwidth, designed to isolate the sulphur II emission line at 672. 4 nm. It is intended for deep sky imaging of emission nebulae, where strong suppression of light pollution and background sky glow is required. 5 nm Narrowband Precision With a narrow 5 nm passband, the SV227 SII filter provides high contrast by isolating the sulphur II emission wavelength while