Specification:
Filter Materials: Optical Glass
Frame Materials: Aluminum
Coating: Multi-layer coating
ND Value: ND8-ND1500
Remark: this filter design to ultra wide structure.Such as 77mm filter, front mount is 82mm.
NISI Variable Neutral Density Filter is a remarkable tool to have on hand. With one filter, you can dial in the degree of neutral density that suits your need. No more having to buy multiple ND filters and lugging them around in your gear bag. The cost-effectiveness of this filter is self-evident. The glass is multi-coated to help prevent flare and ghosting on the camera&39;s sensor. The frame is made from aviation aluminum for additional durability. This filter provides neutral density from ND8 to ND1500. Neutral density filters offer you some exciting possibilities for creating images that would ordinarily not be possible. For those who enjoy blurred or motion images, this is the filter of choice since it allows you to slow down your exposure and "capture" the motion of flowing water or speeding cars, birds or athletes. Neutral density filters reduce the amount of light reaching the film. When used with a digital camera, you can effectively see how this filter works. After the initial exposure, you can check your LCD image and then make whatever change in exposure you feel you need to enhance your image. By rotating the ring, you can either increase or decrease the ND effect. This will be especially useful when trying to achieve "blurred" or "panned" shots. Operates on the same principle as a Circular Polarizing Filter - rotate to the desired degree and shoot Filter ring is indexed (lines) to mark the degree of neutral density you choose