SKYWATCHER 0.77x REDUCER FOR ESPRIT 120ED Prima Luce Lab 75 Optical thickness 10mm SKU

75 Optical thickness 10mm SKU QHY-020072

3mm eyepiece provides a 52 degree undistorted flat field

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

Optical height 7

75 Connection eyepiece side 2" with 3 clamping screws Weight 140 g SKU BA2458196

SKYWATCHER 0.77x REDUCER FOR ESPRIT 120ED Prima Luce Lab 75 Optical thickness 10mm SKUThe 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),