GEOPTIK 12" NADIRUS DOBSONIAN COMPLETE gigantic case Dall-Kirkham up to 10″ in

Dall-Kirkham up to 10″ in aperture and 20 kg weight according to the tube length

so you can use different software

85x reduction factor will convert the focal ratio of your Evostar 80ED from f/7

The primary mirror is collimable with 3 pairs of push & pull screws

stainless steel bar Dovetail saddle

GEOPTIK 12" NADIRUS DOBSONIAN COMPLETE gigantic case Dall-Kirkham up to 10″ inNote: This kit includes both primary and secondary mirrors, focuser and Telrad reflex finder. The Geoptik Nadirus 12" complete kit is a high quality Italian designed and manufactured Dobsonian telescope made from lamellar beech and birch, resulting in a lightweight and stable structure. The entire structure is coated for outdoor use. The complete kit includes a 12" f 5 GSO parabolic primary mirror and 70mm GSO elliptical secondary mirror. The mirrors