Astrophotographic;the filter enhances contrast during visual observation of gaseous and planetary nebulae in all sky conditions; the filter allows high-contrast imaging even in areas with strong light pollution
Locking function; lock screw can adjust the tension to eliminate the gap; solve the light leaking issue under long exposure; which is a double insurance for you
Two pairs of magnets; SV226 drawer for photographic filters compared to traditional screw rotation; magnets offer increased adsorption force; convenient for installation and use
Two filter holders; compatible with 1.25-inch and 2-inch filters; plug and play; reducing repeated installations in dark environments
Reduce light pollution; SV220 telescope filter can greatly reduce the interference from natural light sources such as moonlight or artificial light pollution such as street lighting