Askar 0.8x Full Frame Reducer / Flattener for 160APO Telescope
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The Askar 160 APO comes with three optional premium accessories, a 1.0x flattener and a 0.8x reducer. Introduced here is the 0.8x reducer, which is optimized for the Askar 160APO, and can provide more possibilities for telescope use.
The 0.8x reducer can bring Askar 160APO's focal ratio down to F5.6. This is a standard reducer with field flattening capabilities as well. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters, and faint, fast-moving celestial objects.
The 0.8x reducer adopts a quadruplet 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:
- Focal Length (after attaching to 160APO): 896mm (35.28 inches)
- Focal Ratio (after attaching to 160APO): f/5.6
- Lens Configuration: Quadruplet design
- Back Focus Distance: 55mm (2.17 inches) — measured from the base of the M48 male thread
- Weight: 1.1kg (2.43 pounds)
- Rear-end Thread Types:
- M68×1
- M54×0.75
- M54×0.75 to M48×0.75 adapter (M48×0.75 internal filter thread)
Other Information
- Country of Manufacture: China
The Askar 160 APO comes with three optional premium accessories, a 1.0x flattener and a 0.8x reducer. Introduced here is the 0.8x reducer, which is optimized for the Askar 160APO, and can provide more possibilities for telescope use.
The 0.8x reducer can bring Askar 160APO's focal ratio down to F5.6. This is a standard reducer with field flattening capabilities as well. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters, and faint, fast-moving celestial objects.
The 0.8x reducer adopts a quadruplet 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:
- Focal Length (after attaching to 160APO): 896mm (35.28 inches)
- Focal Ratio (after attaching to 160APO): f/5.6
- Lens Configuration: Quadruplet design
- Back Focus Distance: 55mm (2.17 inches) — measured from the base of the M48 male thread
- Weight: 1.1kg (2.43 pounds)
- Rear-end Thread Types:
- M68×1
- M54×0.75
- M54×0.75 to M48×0.75 adapter (M48×0.75 internal filter thread)
The Askar 160 APO comes with three optional premium accessories, a 1.0x flattener and a 0.8x reducer. Introduced here is the 0.8x reducer, which is optimized for the Askar 160APO, and can provide more possibilities for telescope use.
The 0.8x reducer can bring Askar 160APO's focal ratio down to F5.6. This is a standard reducer with field flattening capabilities as well. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters, and faint, fast-moving celestial objects.
The 0.8x reducer adopts a quadruplet 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:
- Focal Length (after attaching to 160APO): 896mm (35.28 inches)
- Focal Ratio (after attaching to 160APO): f/5.6
- Lens Configuration: Quadruplet design
- Back Focus Distance: 55mm (2.17 inches) — measured from the base of the M48 male thread
- Weight: 1.1kg (2.43 pounds)
- Rear-end Thread Types:
- M68×1
- M54×0.75
- M54×0.75 to M48×0.75 adapter (M48×0.75 internal filter thread)
Other Information
- Country of Manufacture: China
Askar 0.8x Full Frame Reducer / Flattener for 160APO Telescope