When Iris ring is switched between auto iris mode and manual iris mode, on-screen display (LCD monitor /Viewfinder) may flicker for a brief second and focus position may be reset.
When the Iris ring is set to manual iris mode, the Lens Model and Max Aperture Value of the Exif are not recorded correctly.
When the Iris ring is set to manual iris mode, the aperture value is set at the value which Iris ring indicates regardless of exposure mode.
Exif lens names will not be recorded correctly.
When in standby in movie mode, and during movie recording, it switches to MF.