77mm True Color Variable ND2-400 (1-9 Stops) ND Lens Filter Adjustable Neutral Density Filter with 18 Multi-Layer Coatings for Camera Lens Nano-Klear Series
SKU: KF01.2735V1
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The exclusive polarizing film developed with the new titanium coating technology ensures that the yellowing of the screen is effectively solved during video shooting, and the true colors of the screen are restored.
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No, you can't use it with the lens hood. In order to avoid the problem of dark corners, it is designed with a larger OD than ordinary filters.
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The front end is threaded, but it is not recommended to stack with other filters, which may create dark corners. If you do need to stack, you will need to increase the size by 1 (e.g. 67 Adjustable ND filter with 72 other filters stacked behind it).
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It is possible to install a lens cap, but it is necessary to increase the size by 1 size. (e.g. 67 adjustable ND filter, need to buy 72 lens cap), you can also buy K&F CONCEPT TPU material adjustable ND special lens cap, the same size can be, more convenient to use.
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All adjustable ND filters have this problem, the larger the focal length used, the less the effect of vignetting. There will be obvious cross shading and vignetting at large stops, the shading will disappear naturally if you continue to rotate it, it is a physical phenomenon, not a product problem.
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1-9 adjustable.Q:How thick is the frame?A:7.4mm.