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Askar 185 APO 0.8x Full-Frame Reducer

Askar 185 APO 0.8x Full-Frame Reducer


AK-51046
New
In Stock

HK$ 2100


+ -

圖片僅作供參考,並不代表產品實物及所包括配件。
Pictures shown are for illustration purpose only and may not be an exact representation of the product and accessories included.
  • Description

10% deposit is required for preorders. Stock expected after January 2024. 
In the event of a delay of one month or more, you may opt for a refund or choose to wait for the product. The remaining balance must be settled within two weeks of the product's arrival. No refunds can be accommodated for reasons other than specified.

The 0.8x reducer can bring Askar 185APO'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 M84*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.

0.8x Reducer Parameters

(After attaching)140APO Focal length

1036mm

(After attaching)140APO Focal ratio

f/5.6

Lens Number

Quadruplet design

Back Focus

55mm(from the base of M48 male thread)

Weight

kg

Rear-end thread type

M68×1
M54×0.75
M54×0.75-M48×0.75 (M48×0.75 filter thread inside)

0.8x Reducer Installation


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