Variable Neutral Density Filters reduces the amount of light passing through the camera lens without changing the color of the scene. They are especially useful in bright light conditions to help prevent overexposure. Neutral Density filters also allow proper exposure at a wider lens opening for reduced depth-of-field to highlight a key subject by making the foreground and/or background out of focus. ND’s are must have filters especially if you are thinking of doing more landscape and nature photography. The Variable Neutral Density Filter works similarly to a Circular Polarizer; simply adjust the filter until you achieve your desired result. This versatile filter provides a wide range of control over the light entering your lens, with an approximate range of 2 (ND 0.6) to 8 (ND 2.4) stops, preserving the quality of your image. Features: Provides 2 to 8 Stops of Light Control Rotating Ring to Choose Degree of ND Eliminates Buying Many ND Filters Use to Create Blurs/Special Effects Use with Film or Digital Wide Outer Ring Reduces Vignetting 0.9mm Black Aluminum Filter Ring ColorCore Glass Made in the USA In The Box:Tiffen 67mm Variable Neutral Density FilterBlack Nylon PouchLimited 10-Year Manufacturer Warranty Note: The evenly spaced indexing marks between MIN and MAX do not correspond to calibrated stops, but rather serve as a reference for returning to a previous setting on the density scale.
