Askar 0.8x Full-frame Reducer for 185APO

AskarSKU: 185-0.8xFFR

Price:
Sale price$410 CAD
Stock:
In stock: 3 unit(s) - Most orders placed by 2PM EST will be shipped out the same day (weekdays)

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Description

The Askar 185 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 185APO, and can provide more possibilities for telescope use.

 
 

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.

 

Specifications

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 Size Diagram

0.8x Reducer Installation

Spot Diagram

Additional Resources

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