CUT 1-5 F-STOPS Urth Variable ND2-32 Lens Filter Plus+ is made for shallow depth of field long exposure and motion blur techniques in changing light. Great for nature and landscape photography. LOCKING RIM Urth Variable ND Filters have min-max locking mechanisms to prevent over rotation and the X-effect. PRO GLASS This Variable ND Filter Plus+ features 20-layer nano-coated German SCHOTT glass ensuring exceptional light control and transmission. PRECISION ENGINEERING The ultra-slim rim design of this neutral density filter optimizes optics and prevents vignetting. LIFETIME QUALITY Made from tough magnalium the Urth ND2-32 Filter offers lasting resilience. Backed for life.