The tiffen 62mm ht graduated neutral density 0.6 filter is a graduated filter designed to balance light intensity between two areas within a scene, such as landscapes eg it allows you to grab more detail from the sky while properly exposing the foreground'. '.strtoupper('t')his is possible thanks to the unique design of the filter, the nd grads are clear at the bottom half with a gradual transition of the nd effect in the top half of the filter'. '.strtoupper('d')esigned for the discerning professional and imaging enthusiast, the tiffen ht grad nd filters feature a low profile titanium finish ring and anti reflective black lock ring'. '.strtoupper('t')hese high transmission filters offer the strength of a titanium coating combined with the purest optical quality glass and tiffen's academy award winning colourcore technology'. '.strtoupper('e')xposure can be increased by 2 stops to suit individual situations.