Unfortunately corresponds to the manufacturer's instructions that this lens hood is applicable to a zoom range of 28mm to 200mm, not reality. In wide-angle 28mm to 50mm between the picture undergoes a clear darkening (vignetting) of corners - even when the rubber lens hood is completely folded back. Background is an oversized connecting thread of 12 mm length. For comparison, the company Nikon requires only 6 mm. Thus, the advantage of a space-saving lens hood in pleasure dissolves. Ergo - returning gene Amazon. Pity!