77mm Variable ND2-32 Filter Nano-Xcelcel PRO Series - HD Ultra-Thin Copper Frame, 36-Layer Anti-Reflection Green Film
SKU: KF01.1998
Q
Why does the black cross appear?
Answer Question
A
All adjustable ND filters have this problem. The larger the focal length used, the less the cross shadow will be affected. There will be obvious cross shadows and vignetting in the large light reduction gear. If you continue to rotate, the shadows will disappear naturally. This is a physical phenomenon, not a product problem.
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