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77mm Variable ND Filter, Fader ND2 to ND400 Adjustable HD Neutral Density Grey Filter with Cleaning Cloth for Camera Lenses

SKU: SKU0129

Q
Is the ND2-400 biased?
Answer Question
A
Due to the use of a polarising film to control the amount of incoming light, colour cast is a common phenomenon on all commercially available adjustable ND's. KF has minimised the effect of the polarising film on the colour cast by using a mature manufacturing process and perfecting its coating technology. *According to laboratory data, the ND2-400 has a bias value of around 290k, which is below the industry average of 500k. Does the ND2-400 have dark corners? Tested with Nikon Z 7 and Nikor 14-30mm Sline, dark corners are not noticeable at 14mm, no dark corners at 16mm.
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