Celestron Ha-Hb-OIII Imaging Filter - Rowe-Ackermann 8 Astrograph - 93619 Binocular Viewers 25” eyepieces with a standard

25” eyepieces with a standard filter thread

Secondary Mirror Obstruction: 3

This makes it your perfect companion for all sorts of outdoor activities

·Quick and easy no-tool setup

Celestron Ha-Hb-OIII Imaging Filter - Rowe-Ackermann 8 Astrograph - 93619 Binocular Viewers 25” eyepieces with a standardCelestron Ha Hb OIII Imaging Filter Rowe Ackermann 8 Astrograph This is a Celestron Ha Hb OIII Imaging Filter for the Rowe Ackermann 8 (RASA) Astrograph Enhance imaging of nebulae with your 8 Rowe Ackermann Schmidt Astrograph by blocking light pollution, improving image contrast, and darkening the sky background This filter transmits only the key H H OIII wavelengths from emission nebulae, providing high contrast that yields better images This filter