Sony has posted a short note that some 'initial production' DSC-F717's will produce images which are out of focus when used with the Hologram AF (Laser light illumination) at certain focal lengths and certain light conditions. "Although these circumstances are limited, Sony will offer a parameter adjustment to the Hologram AF system for end users in accordance with its limited warranty, through Sony Service Centers and Sony's Authorized Service Centers." A list of serial numbers can be found within. UPDATE 31/Oct: Sony US have contacted us and have also posted update procedure.