K&F 40.5MM Nano-X Variable ND Filter, ND8-ND128 K&F Concept

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The K&F Concept 40.5mm Nano-Xcel series filter is a variable ND filter ND8–128 (3–7 EV) that is hydrophobic and does not produce the unwanted "X" cross effect.

Imported AGC glass

The variable ND filter is made from imported AGC optical glass, which is one of the best filter materials available. It offers balanced color reproduction without unwanted color casts and without loss of sharpness or image clarity.

frame without the "X" effect

Thanks to advanced technology from K&F Concept, you can say goodbye to the typical "X" cross effect that often appears with variable ND filters when used with wide-angle or telephoto lenses.

NANOTEC surface treatment

K&F Concept's optical engineers have developed a multi-layer 29-fold nanometric coating that is water-resistant, scratch-resistant, and glare-resistant, protecting the lens and ensuring high image quality.

Ultra-thin frame to prevent vignetting

With an ultra-thin 7.4mm frame, the filter effectively prevents vignetting on wide-angle lenses. The CNC anti-slip design makes it easy to install and remove the filter.

Compatibility: This filter is compatible with all lenses with a diameter of 40.5 mm. Before ordering, check the diameter of the lens thread – it is marked with the symbol "ø". A 43 mm cap or lens hood is required for a 40.5 mm ND filter.