Olympus has asked the buyers of 1.2m Infinity Twin, AF-1 Twin, Infinity Z00 200 series, AZ 200 series and other film cameras sold in the US between 1989 and 1995 to return them for repair after the manufacturer discovered that the products' flash units may overheat and produce smoke. Fortunately, no one's yet been injured, but Olympus warned owners not to use their cameras until the devices have been fixed. ®