Fringer EF-FX Pro II/III, EF-FX II and EF-FX Ultra User’s Manual
Notice： Setting shutter speed manually can avoid aperture noises during view finding.
See sector 3.2 for details.
1. Introduction
This product is compatible with Canon EF mount and Fujifilm X mount protocols. It can control
lens’ aperture electronically, auto focus and report lens information for EXIF recording.
There are three versions. The Pro version has a built-in electronic aperture ring, which sets
aperture values like native XF lenses. The standard version doesn’t have an aperture ring, and the
aperture value can only be set through the camera body. The Ultra version has a built-in focal
reducer/speed booster with a magnification of approximately 0.74X. You get an aperture that is
approximately 1 stop faster and a view angle closer to a full-frame camera.
Fringer EF-FX Pro II adapter
2. Compatibility
This adapter works on X mount cameras. However, due to capability differences of different
camera models, its performance may vary.
On cameras equipped with none X-Trans CMOS or X-Trans I CMOS, such as X-A series, X-E1 and
X-Pro1, since the camera body lacks PDAF support, adapted lenses can only work under CDAF mode.
AF speed may be slow. And for some lenses AF accuracy may not be good, either. If its performance
can’t satisfy you, MF is recommended.
On cameras equipped with X-Trans II/III/IV/V CMOS, as those PDAF focus points are activated, AF
becomes faster and more accurate. Since PDAF region of X-Trans II CMOS is much smaller, X-Trans
III/IV/V based cameras are recommended.
We have tested and optimized over 210 models of EF mount lenses. All optimized lenses can
activate all the PDAF focus points and gain a better AF performance. However, the EF mount is a huge
To Next Page
Need help?
General
