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The Askar 160APO comes with two optional premium accessories: a 1.0x flattener and a 0.8x reducer. Introduced here is the 1.0x flattener which is optimized for the Askar 160APO and can provide more possibilities for telescope use.
- Full frame flat field
- Back focus: 55mm
- Connections: M68, M54 & M48
The Askar 160 APO comes with two optional premium accessories, a 1.0x flattener and a 0.8x reducer. Introduced here is the 1.0x flattener, which is optimized for the Askar 160APO, and can provide more possibilities for telescope use.
The 1.0x flattener does not change the telescope's focal ratio itself. After connecting with the Askar 160APO, 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 back focus from the M48 thread is a standard 55mm. The front thread is M92*1. At the camera end, it is equipped with M68*1, M54*0.75, and M48*0.75 three 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
Askar 1x Flattener for Askar 160APO |
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(After attaching) 160APO Focal length |
1120mm |
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(After attaching) 160APO Focal ratio |
f/7 |
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Lens Number |
Triplet design |
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Back Focus |
55mm (from the base of M48 male thread) |
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Weight |
0.56kg |
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Rear-end thread type |
M68×1 |
- Correction Optics Type
- Field Flattener
Summary
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