K&F Concept Variable ND2-ND400 Filter



K&F Concept was founded in 2011 and strives to offer a good balance between quality and price. The company specializes in the design, research, manufacturing, and marketing of photographic accessories. At the present time, the company is selling products in multiple countries, as an official retailer and through Amazon.

Official product link:



Packaging and accessories

The KF01.1461 filter is packaged in a small square cardboard box. The front side of the packaging has a simple design with an orange background and gold & black accents. The name of the manufacturer is printed on the upper side, right next to the name of the product series. The main features of the filter are presented on the middle part with simple monochrome diagrams.


The back side of the box features the relevant warranty information printed in two languages.


The filter is protected by the included leather carrying pouch and a soft plastic bag.



Series: Nano
Model: KF01.1461
Color: Black
Materials: Aluminum, Glass
Dimensions: 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm, 82mm
Mounting system: Thread


– Made of Japan-made top optical glass
– No Vignetting & Dark Corners
– 9 Stops Adjustable
– Ultra Slim – 7.3mm
– Waterproof
– Scratch Resistant
– Nanotec Coating
– Carry Case included

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