Please consult us of your lens and camera mount before purchase to get a 100% right product 

Suitable for: 
Lens: M42 mount lens 
Camera: Fuji G Mount GFX Camera Body 

Note: 
The camera needs to be set to function without a GFX-Mount lens attached. You can do this by changing the following camera setting:
'MENU' -> 'SETUP' -> 'BUTTON/DIAL SETTING' -> 'SHOOT WITHOUT LENS' -> 'ON' (Exact naming and location of this option may change depending on camera model),Choose ON to enable the shutter release when no lens is attached.

Infinity focus position: the position of the infinity mark 【∞】of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes. The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity. 

After Sales Service: 
Please contact our professional after sales team for video help or technical support in needed.