William Optics Adjustable Flattener Reducer Flat61R for ZenithStar 61 In this way it is

In this way it is ensured that the least light is lost to the night-adapted eye and that no scattered light will interfere

the rings of Saturn

The optics of this Newtonian reflector are made of glass with an anti-reflective coating

The Omegon 150/750 EQ-3 Newtonian Reflector is an ideal telescope for beginners in astronomy

dark and light blue - you can discover numerous details on our planets

William Optics Adjustable Flattener Reducer Flat61R for ZenithStar 61 In this way it isDescription The flattener is a lens that evens out the field, as this is slightly curved by the primary optics. This curvature causes stars that are imaged at the edge of the field of view to be less sharp. The flattener, also called a field flattener, corrects this effect. Astrophotographers can then enjoy images where the stars remain sharp right out to the edge of the exposure. The flattener is installed between the telescope and the camera. This