Rotating ring between ND2-400 giving great versatility in changing light. Reduces the amount of light without affecting colour balance. ND filters can eliminates overly bright & washed-out images. Enables slow shutter speeds to record movement in subjects such as waterfalls providing a silky smooth effect to flowing water. Apply slow shutter speed under strong sunlight exposure. Simply rotate the ring of this filter, it offers 2 to 8 stops added density. Slim profile design. Thin filters are essential for avoiding vignetting when shooting at wider angles. Colour: black Material: aviation aluminum + optical glass Size: 49mm / 52mm / 58mm / 77mm / 67mm<br><br>Package Contents: 1 x ND Filter Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.