Fringer EF-GFX Pro User Manual

1. Introduction

This product is compatible with Canon EF mount and Fujifilm G mount protocols. It can control
lens' aperture electronically, auto focus and report lens information for EXIF recording.
There is a built-in electronic aperture ring just like native GF lenses. And it employs contactless
sensors so that you don't need to worry about wearing problems. In addition to the electronic
aperture ring, the adapter supports more unique features including Phase Detection AF (on GFX100 &
GFX100S only, so far), IBIS, Lens IS and In-camera LaCA (Lateral Chromatic Aberration) Correction,
etc.
Lens release
Electronic aperture ring
（Open→Close-A-C）

2. Compatibility

This adapter works on G mount cameras. However, due to capability differences of different
camera models, its performance may vary.
On cameras without PDAF support, such as GFX50s, GFX50r and GFX50s II, adapted lenses can
only work in the CDAF mode. Most of lenses on the tested and optimized lens list should work
normally in the AF-S mode. However, as many EF mount lenses are not designed for contrast AF, AF
speed may be slow. And AF accuracy may not be good, either. Meanwhile, AF-C mode is not supported.
If AF performance can't satisfy you, MF is recommended.
On cameras with PDAF support, such as GFX100 and GFX100S, tested and optimized lenses AF
much faster and more accurate. In some circumstances, the experience of using adapted lenses on
these cameras is just like using a DSLR. Thus, if you are about to purchase a new G mount camera to
use EF lenses, the 102M pixel models are highly recommended.
We have tested and optimized over 110 models of EF mount lenses. Compare to lenses not on the
list, tested and optimized ones work better in both PDAF and CDAF modes. However, the EF mount is a
Fringer EF-GFX Pro User's Manual
including a dust proof rubber ring
EF mount
G mount
1
MicroUSB port
for firmware update