Fujifilm released a new firmware for the X-Pro1 and its Fujinon XF lenses in order to solve the disturbing aperture ring continuous noise that I noticed when I reviewed the X-Pro1 in Malta last month. The new X-Pro 1 firmware will also fix a few bugs here and there and add a parallax correction when you shoot in manual focus mode with the optical hybrid viewfinder to adapts its frame position. To fix the diaphragme blades noise, make sure you update the firmwares of both the camera and the lenses.
The Fujifilm X-Pro 1 V1.01 firmware download.
The Fujinon XF 18mm F2.0 V1.01 firmware download.
The Fujinon XF 35mm F1.4 V1.01 firmware download.
The Fujinon XF 60mm F2.4 macro V1.02 firmware download.