SKYWATCHER FLATTENER & REDUCER FOR 120ED refractor The keypad is built to

The keypad is built to maintain the maximum readability in all lighting conditions

The 235mm PLUS support rings are designed for optical tubes with a diameter of Ø235mm

Polar scope (Southern and Northern Hemisphere)

which allows for the correction of the classical polar alignment and conic errors as well as the most important flexure terms of the optical tube

The flexible stretchy fabric makes it quick and painless to use

SKYWATCHER FLATTENER & REDUCER FOR 120ED refractor The keypad is built toThe SkyWatcher field flattener and reducer for the Evostar 120ED transform your telescope into a professional astrographer. Refractors are affected by field curvature no matter what brand or diameter. This is not an issue for visual observations as eyepieces can partially compensate this aberration. On the contrary, when a refractor is used for astrophotography, a curved field will limit the corrected image circle and the stars on the border of the