William Optics Adjustable Flattener Reducer Flat61R for ZenithStar 61 Payload capacity of up to

Payload capacity of up to 12kg with a mount-only weight of 4

The Premium zoom eyepiece has a special optical design which provides striking contrast and excellent sharpness

Type  Refractor Type of build  Apochromat  Aperture (mm)  140 Focal length (mm)  910 Aperture ratio (f/)  6

The optics render a clear image

5 Type Mount Type of build Equatorial

William Optics Adjustable Flattener Reducer Flat61R for ZenithStar 61 Payload capacity of up toDescription 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