Insert Coin: The Rainbow Flash Wizard turns your flash gun into a kaleidoscope

While the tech fraternity is obsessed with perfect white balance, the creative community may want a bit of variety. That's the idea behind the Rainbow Flash Wizard, a device that lets photographers coat their subjects in any color that takes their fancy. In essence, the device is a color wheel that you can mount over your flash gun -- giving you a rainbow of new lighting options. As well as creative settings, seasoned pros can use the unit to correct under or overexposed shots without resorting ...