49mm Variable ND32-ND512 Adjustable Filter NO X Spot 28 Multiple Layer-Nano-Xcel Series

SKU: KF01.1467

Q
Why does the black cross appear?
Answer Question
A
All variable ND filters have this problem: the larger the focal length used, the less the cross shadow is affected. In the large light reduction gear, cross shadow and vignetting appear obviously. As you keep rotating, the shadows will naturally disappear. This is a physical phenomenon, not a product problem.