Celestron Ha-Hb-OIII Imaging Filter - Rowe-Ackermann 8 Astrograph - 93619 Binocular Viewers This extension allows you to

This extension allows you to raise the elevation of your mount by 6

·Quick and easy no-tool setup

and align to your telescope''s optics with the azimuth and altitude adjustment knobs

25” eyepieces with a standard filter thread

Use the lighter filters with smaller telescopes and higher magnification eyepieces

Celestron Ha-Hb-OIII Imaging Filter - Rowe-Ackermann 8 Astrograph - 93619 Binocular Viewers This extension allows you toCelestron 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