In a move that addresses the main customer complaint about the 5D mk2's otherwise excellent video recording mode Canon has announced that a new firmware patch for the Canon 5D mk2 will be released June 2nd. The new firmware will enable manual exposure control in video recording mode including full aperture selection, ISO and shutter speed control. Selectable ISOs will be Auto, 100-6400 and H1. Shutter speeds will be selectable between 1/30th and 1/4000th of a second.