FOTGA 3pcs ND2+ND4+ND8 Neutral Density Filter Kit for Cokin P

(Third Party) Compatible with Cokin P series. Gradual filter is a MUST for digital users, because the digital sensor unlike film has very low exposure tolerance. Detail will be lost on both low and high light area. To correct this, you need gradual filter to balance it! Slide in the holder, the filter can be moved up and down to convert the graduated rate as for the special design of the square shape, and it is appreciated by many photographers.