Askar 1x Full-frame Flattener for the 140 APO - 140APO-FLAT 68º Eyepieces Hand Controller

Hand Controller

Parfocal eyepiece require little to no focusing when changing from low to high power

f/4 effectively reduced to f/3

let's talk comfort because stargazing should be a breeze

Optical Tube Weight: 45 lbs (20 kg)

Askar 1x Full-frame Flattener for the 140 APO - 140APO-FLAT 68º Eyepieces Hand ControllerThis Askar 1X Full Frame Flattener is designed specifically for the 140APO. It does not change the effective focal length of the telescope, which is f 7, but it DOES further flatten the field, correcting for both field curvature and coma, to reveal fine star points to the edges of the field. The Askar 1X Flattener has a triplet design and supports a 44 mm image circle. The telescope side has an M91*1 thread, and the camera side of the flattener has a