Gitzo Series 5 Off Centre Ball Head L Mount Compared to the smaller versions Compared to the smaller versions GH3382QD has a larger ball and quick release adapter for strong and comfortable use with heavier equipment it makes for easier hand held low light shooting and provides a shallow depth of field for high impact results The ball lock now features a completely new pat pending system that combines two locking systems in one with the Quick Release System and the leveling spirit bubble Levelling bubble: The new leveling system made of three independent leveling bubbles on the quick release plate and one in the ball stem always guarantee perfectly leveled images