Putter Adjustment Design

This exlusive putter design for convenience rotating the filter stop in photography or video shooting.

Unltra slim frame support no vignetting at 16mm focal length

The K&F Concept Variable ND filter operates on the same principle as a Circular Polarizer – rotate until you reach your desired effect and shoot.

Provides 1 to 9 stops of light control

It allows you to have continuous control over the amount of light coming through your lens in an approximate range of 1 (ND 0.3) to 9 (ND 2.7) stops – while maintaining the integrity of your image.

32 Multi-layer Coated

Each glass both side was coated , total 32 layer coating , reducing the filter itself relection effectively and the glare because of long time exposure.

K&F Concept Variable ND2-ND400 Filter

The K&F Concept Variable ND filter is a unique, versatile and flexible tool, affording you the convenience of using several different stop Neutral Density filters all in one. Primarily used as a photographic tool for controlling depth of field and exposure, the Variable ND is being sought in the video market for it's HD/Waterproof/Scratch Resistant and the exclusive putter design, providing a professional tool for photographers and amateur.

Oxidation sandblasting

Filter frame has been oxidation sandblasting effectively avoiding stray light entering in lens, reducing the non-metallic surface reflection.

Waterproof & Scratch Resistant

With waterproof and scratch resistant in both glass side , even the water spilled on glass can be easily wiped , eaily for cleaning and carrying, also with anti-fog function.

Leather Carry Case

This ND filter case made by PU leather ,side pull design can take out the filter conveniently.