In our continued testing of firmware 5.14 for the IQ series of digital backs from Phase One, we have discovered that resetting the back to it’s default settings will return the ISO to ISO 200, not the camera’s base ISO. Phase One is aware of this condition, and it will be fixed with the next version of firmware.
5.14 is very stable otherwise, so we do not feel this is a reason to downgrade or not use this firmware. We still firmly suggest updating to 5.14 if you are using an older firmware version, and keep this ISO discrepancy in mind until it is fixed by Phase One.