Due to an updated algorithm, faster AF speed is achieved with the following XF lenses: XF14mmF2.8 R, XF18mmF2 R, XF35mmF1.4 R, XF60mmF2.4 R Macro and XF18–55mmF2.8–4 R LM OIS.
The “Focus Peak Highlight” function, featuring on the Fujifilm X100S and X20 cameras, has been added via this firmware update. It assists accurate and sensitive manual focusing by enhancing the outline of the subject in high contrast.
3. Improvement of the method to change magnification during manual focus has been further improved.
The focus detection algorithm has also been improved to provide more accurate focus precision for low contrast subjects and scenes containing horizontal stripes.
Optical Image Stabilization (OIS) for the XF18–55mmF2.8–4 R LM OIS lens was improved when shooting a movie.
Please visit http://www.fujifilm.com/support/digital_cameras/software