ZWO 70mm Quad APO Refractor Hydrogen Alpha Dumbbell nebula M27…)

Dumbbell nebula M27…)

and the telephoto camera will swiftly home in and auto-focus on the target

Filter Size: 1

the double-stack etalon adds on $2100 to that price

ZWO 70mm Quad APO Refractor Hydrogen Alpha Dumbbell nebula M27…)The FF70 APO uses a quadruplet air spaced APO lens design, including one piece of ED glass. It supports 44mm, full frame imaging. With an aperture of 70mm, a focal length of 490mm, and a native focal ratio of f 7. 0, the FF70 APO is versatile and can be used for both visual observation and astrophotography. The telescope's self flattened design means no more precisely calculating your backfocusif you're achieving focus, you'll get sharp stars, period.