Description

Askar 0.8x Reducer for 120APO Triplet Refractor

This 0.8x reducer from Askar will reduce the focal ratio of the Askar 120APO from f 7 down to f 5.6. A shorter focal ratio allows the optical tube to have a wider field of view with faster exposure times. This makes the system capable of capturing larger areas of nebulae and star clusters, as well as faint, fast-moving celestial objects. This standard reducer also serves as a field flattener.

Adopting a triplet optical design, this 0.8x reducer supports a 44 mm, full-frame image circle. The overall weight is just under two pounds. The back focus from the M48 thread is a standard 55 mm. The front thread is M84x1. At the camera end, this reducer has M54x0.75 and M48x0.75 adapters. At the same time, it has an internal M48x0.75 2-inch filter thread to accept 2-inch filters for astrophotography. The CNC machined metal dust caps at each end of the reducer prevent dust and protect the optics when not in use.

Installation: Step One
Installation of the 0.8x reducer on the Askar 120APO is a simple, two-step process. Begin by unscrewing the 2 and 1.25 adapters on the 120APO.

Installation: Step Two
Next, unscrew and remove the dust cap from the 0.8x reducer. Then insert and screw the reducer into the back of the 120APO.

Technical Specifications

（After attaching）120APO Focal length		672mm
（After attaching）120APO Focal ratio		f 5.6
Lens Number		Triplet design
Back Focus		55mm（from the base of M48 male thread）
Weight		0.75kg
Rear-end thread type		M68*1
	M54×0.75
M54×0.75-M48×0.75 (M48×0.75 filter thread inside)

 

In the Box

Askar 0.8x Reducer for 120APO Triplet Refractor (120APO-FR)

Warranty & Manuals

Askar Warranty

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