ASKAR 120APO 1 Flattener
The 1x flattener does not change the telescope’s focal ratio itself. After connecting with the Askar 120APO, 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 overall weight is 0.75kg. The back focus from the M48 thread is a standard 55mm. The front thread is M84*1. At the camera end, it is equipped with M54*0.75 and M48*0.75 two sizes of adapters, which are convenient for connection. At the same time, it has a built-in M48*0.75 2-inch filter thread, which can be directly installed and used. The overall CNC machined, both end threaded metal caps prevent ash when not in use.
Specifications
1x Flattener Parameter | ||
(After attaching)120APO Focal length | 840mm | |
(After attaching)120APO Focal ratio | f/7 | |
Lens Number | Triplet design | |
Back Focus | 55mm(from the base of M48 male thread) | |
Weight | 0.75kg | |
Rear-end thread type | M54×0.75 M54×0.75-M48×0.75(M48×0.75 filter thread inside) |
1x Flattener Size Diagram |
1x Flattener Installation |
Spot Diagram |
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