The 1.0x flattener does not change the focal ratio of the telescope itself. After attaching it to the Askar 140APO, it still maintained a focal ratio of 7. The flattener corrects field curvature and coma, resulting in flatter field edges and finer star points.
The 1.0x flattener adopts a triplet design and supports a 44mm full-frame image circle. The total weight is 0.75 kg. The back focus from the M48 thread is a standard 55mm. The front thread is M841. At the camera end, it is equipped with adapters of three sizes: M681, M540.75 and M480.75, which are convenient for connection. At the same time, it has a built-in 2 inch M48*0.75 filter thread, which can be directly installed and used. The entire body is CNC machined, with threaded metal caps on both ends to prevent dust when not in use.
The 1.0x flattener adopts a triplet design and supports a 44mm full-frame image circle. The total weight is 0.75 kg. The back focus from the M48 thread is a standard 55mm. The front thread is M841. At the camera end, it is equipped with adapters of three sizes: M681, M540.75 and M480.75, which are convenient for connection. At the same time, it has a built-in 2 inch M48*0.75 filter thread, which can be directly installed and used. The entire body is CNC machined, with threaded metal caps on both ends to prevent dust when not in use.