KIPON Baveyes 0.8x introduced lens adapters that bring the medium format optics Mamiya 645 to Fuji G mount cameras, virtually eliminating any crop factor image loss and maintaining diagonal angle of view.

Reduce the focal length by 0.8,and multiply the focal length by 0.8 based on the origin,so that the effective focal length becomes shorter and the shooting range is larger. With 0.8x adapter,you can get the similar feeling using these lenses on original assorted cameras.

Built-in 3 groups of 5 optical lenses, increase aperture one stop,the focal length multiply by 0.8 (equivalent focal length = actual focal length ,crop factor *0.8) based on the origin,such as F2.8 turned to F2,so that the depth of field is more blurred,changed also 0.8x.

PRO M645-GFX 0.8x V2 lock style loptic applied telecentric design,to let light coming into the digital sensor vertically as far as possible. for some lenses, after using 0.8x focal reducer, lens quality would possiblely improved.

*Version 2 optic improved optic performance of shooting towarding strong light.
 
Pro lock version

M645-GFX 0.8x PRO Lock Version is specially designed for video shooting as a both-side-locked version, which eliminates any shaking of the lens and provides stability for photography.
 
● Features
Make effective focal length shorter so the shooting range is larger.
Increase aperture one stop, the depth of field is more blurred.
Built in 3 groups of 5 high-quality optical glasses.
The surface is made of metal, solid well-made.
Focus infinity is ok with this adapter.
 
● Specifications
Brand: KIPON
Camera Mount: Fuji G Mediuim Format
Lens Mount: Mamiya 645
Material: stainless steel, aluminum, glass