K&F CONCEPT ND2 to ND400 Lens HD ND Filter Fader Easy to Variable Adjustable Neutral Density 49mm 52mm 58mm 62mm 67mm 77mm 82mm

K&F Concept ND2 to ND400 Lens HD ND Filter Fader Easy to Variable Adjustable Neutral Density 49mm 52mm 58mm 62mm 67mm 77mm 82mm

Please reconfirm your lens size before ordering, your camera's lens thread size will be marked somewhere on the lens barrel. This number is always preceded by a "Ø" (diameter) symbol. Eg. Ø58=58mm thread size.

Q1: How does ND2-400 work?
A1:Polarizers with high transparency are used to control the amount of light entering the lens through the filter.

Q2: Can the original lens cap be used for ND2-400?
A2: In order to prevent vignetting, the ND2-400 is designed with an ultra-wide angle structure. The front port diameter of the filter is one size larger than the original aperture of the lens, so the lens cap needs to be one size larger than the lens aperture. For example, the 77mm ND2-400 Need to use 82mm lens cap.

Q3: Does ND2-400 have a color cast?
A3: Due to the use of polarizing film to control the amount of light entering, color cast is a common phenomenon among all adjustable NDs on the market. KF relies on mature manufacturing technology and fine coating technology to minimize the polarization effect of the polarizing film.

Q4: Does ND2-400 have vignetting?
A4: Using Nikon Z 7 and Nikor 14-30mm Sline test, 14mm vignetting is not obvious, 16mm has no vignetting.

Q5: Does ND2-400 have a cross shadow?
A5: The maximum aperture of an ultra-wide-angle lens below 24mm will have a slight cross shadow in the 1-5 gear dimming. The longer the focal length used, the smaller the effect of the cross shadow. There will be obvious cross shadows and vignetting in the large gear of dimming. If you continue to rotate the shadows, the shadows will disappear naturally, which is a physical phenomenon and not a product problem.