Fujifilm has said it will attempt to address the problem of X10 images showing 'white discs' with a firmware update in response to customer concerns. The company statement comes in response to our enquiries about the problem, and confirms the phenomenon is caused by sensor 'blooming.' It claims the camera is working within prescribed tolerances and that the problem is not uncommon in other cameras but says that it plans updated firmware to 'lessen the effects' of the blooming. We have prepared a quick test of the issue (which we will cover in greater depth in the full review), showing the effects of Fujifilm's suggested ways of mitigating the issue.
Update: We have published a report on the effect of firmware v.1.03 on the orbs issue (Feb 25th 2012)