Astronomik H-alpha 6nm CCD MaxFR 2" (M48) Filter for Fast Optics lunar imaging camera It fits any telescope with

It fits any telescope with a 1

The doctor will use the keyboard to call the patient when it's his turn

Which is better

3 group(A B C group)

38mm clear aperture

Astronomik H-alpha 6nm CCD MaxFR 2" (M48) Filter for Fast Optics lunar imaging camera It fits any telescope withAstronomik H alpha 6nm CCD MaxFR 2'' (M48) MaxFR Astronomik photographic narrowband emissionline filters for fast optical systems. There is an ever growing demand for filters suitable for extremely fast optical systems like Celestrons RASA and the Epsilon Astrographs made by Takahashi. Our novel MaxFR emission line filters are suitable up to very fast focal ratios. The new Astronomik MaxFR series of narrowband emissionline filters is perfectly matched