Antlia Edge 4.5nm SII Narrowband Filter - 31 mm Unmounted CS Lens The "is" versions of the

The "is" versions of the Tele Vue-60

It works in conjunction with a third-party dew heating strip and allows the Celestron Smart DewHeater controller to deliver the right amount of warmth to your telescope's corrector to prevent dew while still preserving battery power

The Sky-Watcher Classic Dobsonian Telescope 254 mm/1200 mm (10"aperture and 1200 mm focal length) has a paraboloidal primary mirror to eliminate spherical aberration and a four-arm secondary mirror bracket with fine supports (0

25" and 2" eyepieces and other compatible items

with CS and C-Mount Optical Window AR Anti-reflection Glass Extra Filter – Back Focal Length 12mm Weight 85g

Antlia Edge 4.5nm SII Narrowband Filter - 31 mm Unmounted CS Lens The "is" versions of theAntlia 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