The lee wide angle lens hood has much larger bellows to allow for effective shading on wide or particularly large lenses where the use of standard hoods could cause vignetting it can slide into the front 2mm slot of the filter holder or attach directly to the lens with an adapter ring lees hoods are made of the highest quality material and are self supporting yet manually adjustable to any position without guides or rails the hood may be extended at any angle to suit your shading needs i