Antlia Edge 4.5nm SII Narrowband Filter - 31 mm Unmounted Mounts and Tripods enabling quick and effortless focusing

enabling quick and effortless focusing

This William Optics ZenithStar 61 f/5

and control the camera trigger

and also functions as an accessory tray

Antlia Edge 4.5nm SII Narrowband Filter - 31 mm Unmounted Mounts and Tripods enabling quick and effortless focusingAntlia OIII Edge Filter Highlights: Type: Sulfur (SII) FWHM: 4. 5 nm CWL: 672. 4nm Filter Thickness: 2 mm + 0. 05 mm Peak Transmission: 90% Size: 31 mm Unmounted Antlia SII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4. 5nm bandpass. The suppression of optical density (OD)5 on unwanted wavelengths and the excellent transmittance characteristics found in the Antlia 3nm Pro series has been incorporated into the 4. 5nm EDGE