That the optimum fuel injection timing corresponding to one operatingmode of engineis determined byadjusting the solenoidvalvecanimproveeconomyandpower, andlowerthe emissionsofengine.
Other differences between the FZ30 and FZ50 include the addition of SDHC card support, a TTL Flash hot-shoe, 16:9 shooting mode, and the so-called Venus Engine III image processor, but the elimination of TIFF file support and several thousand pixels from the 2.0-inch LCD.