Filtre O-III 18nm pour Télescope 1.25 Pouce - SVBONY autopostr_instagram_68716 Conçu pour les conférences

Conçu pour les conférences

robustesse et résistance aux intempéries

Motion detection: supported

Quel type de prisme est utilisé

Compatibility and Versatility: The tube rings feature 26 screw holes and a mounting handle

Filtre O-III 18nm pour Télescope 1.25 Pouce - SVBONY autopostr_instagram_68716 Conçu pour les conférencesThe 1. 25 inch O III filter is useful for large telescopes where the Moon's light can be extremely blinding. It brings out details on darker celestial objects like nebulas. It only allows the doubly ionized oxygen lines between 495. 9 nm and 500. 7 nm to pass through with an efficiency of 90%. Features Size: 1. 25 inches (18nm) Blocking range: 400 700nm Transmittance: 90% at 495. 9nm and 500. 7nm FWHM: 182nm Thickness: 1. 85mm Benefits This filter is