Had acquired as a flash offer cheap at Amazon this lens. I'm very satisfied with the picture quality. Can only recommend the Tokina. Must also confess that it has its problems in direct backlight with Lensflares. The build quality is very good, feels dibasic. But it has also its weight. Sun visor is a little stiff when attaching and removing, but sitting for bombproof. Photos are unprocessed. Picture 2.3 Long Exposure with ND filter 1000.