120APO 1x Full-frame Flattener

The Askar 120 APO comes with three 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 120APO， and can provide more possibilities for telescope use.

Retail Price:

$ 219

Quantity

20 In stock

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Retail Price:

¥ 55542

Quantity

20 In stock

Quantity

库存剩余

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Product introduction
Product introduction
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- Commodity name: 120APO 1x Full-frame Flattener
- Commodity ID: 120APO 1x Full-frame Flattener
The Askar 120 APO comes with three 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 120APO， and can provide more possibilities for telescope use.
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.

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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Product introduction

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)