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