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
Double pair of magnets; SV226 photographic filters drawer compared with traditional screw rotation; magnet has stronger adsorption force; which is convenient for you to install and use
Two filter holders; compatible with 1.25-inch and 2-inch filters; plug and play; reducing repeated installations in dark environments
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. The SVBONY filter is a better choice for all digital imaging with digital cameras; DSLR camera; CCD cameras; modified Webcams and telescopes. SV226 filter drawer adopts integrated CNC molding and anti-light leaking design. It can compatible with 1.25" & 2" specifications filters on the market. Strong magnetic attraction, prevent the filter from falling off. The threads on both sides of the SV226 filter drawer are M48x0.75 internal threads and M42x0.75 external threads, which are compatible with most specifications of astronomical cameras. Note: If you want to connect with a dslr camera, you need to use an additional camera adapter.