Cavision 3 x 4" Medium-Edge Graduated ND 0.6 Filter (2-Stop, 3mm thick)

This Cavision 3 x 4" Medium-Edge Graduated ND 0.6 Filter is compatible with filter holders that can accommodate 3 x 4" filters that are 3mm thick. It helps to darken specific areas of an image, such as bright skies, while allowing for a normal, unaffected exposure in the other regions of the image. The filter is densest at the edge and tapers to clear by the middle, with a medium-edged line of transition between the dense and clear areas. A neutral density filter with a medium-edged line of transition can filter the sky while minimizing its effect on the land. It is particularly useful for images that include elements like rooftops and mountains that protrude into the sky. Neutral density filters do not affect the coloration of the image, and this filter provides up to a 2-stop reduction in light from entering the lens.

This filter is uncoated and constructed from optical glass for clarity as well as color fidelity. Its design is intended to maintain image sharpness when used with lenses that feature a focal length of up to 70mm.