SKYWATCHER 0.77x REDUCER FOR ESPRIT 120ED Prima Luce Lab 3mm eyepiece provides a 52

3mm eyepiece provides a 52 degree undistorted flat field

Optical height 7

The scope has a focal length of 240mm and a focal ratio of f/4

The primary mirror cell is made of birch plywood with a support system where the 9-point floating mirror rests on discs of natural cork foam

SKYWATCHER 0.77x REDUCER FOR ESPRIT 120ED Prima Luce Lab 3mm eyepiece provides a 52The Sky Watcher 0. 77x Flattener Reducer for Esprit 120ED telescopes shortens the focal ratio of the 120ED to f 5. 4 and focal length to 647mm. Exposure time is reduced by 68% when compared to the native f 7 configuration. The illuminated and corrected image circle is 34mm, making it suitable for use with APS C sensors and smaller. The flattener reducer has a back focus requirement of 95mm (55mm when paired with the included spacer and M48 adapter),