ND Graduated Filters
B+W graduated neutral density filters are often used in landscape photography in order to avoid an overexposure of the sky with a correct exposure of the ground. The filters are colored neutral gray on one half with a smooth transition into the neutral clear filter half. With threaded filters the rotatable mount allows an exact horizontal alignment. A B+W graduated ND filter is mainly used to compensate for a sky that is too bright compared to the dark foreground.