K&F Concept Nano-X 43mm XV40 ND8-ND128 Adjustable ND Filter

K&F Concept Nano-X 43mm XV40 ND8-ND128 Filter

The K&F Concept Nano-X 43mm XV40 ND8-ND128 filter offers adjustable neutral density filtration from ND8 to ND128, enabling precise control over light entering the lens. This range corresponds to an exposure reduction of 3 to 7 f-stops, ideal for capturing motion blur effects such as flowing water, waterfalls, or moving clouds, as well as achieving shallow depth of field in bright conditions.

Optical Quality and Construction

Constructed from hardened AGC optical glass, the filter features 28 advanced nano-coatings that provide anti-reflective properties and protect against water, oil, scratches, and glare. These coatings ensure high light transmission and maintain image quality without introducing color casts or the common "X" pattern artifact seen in many variable ND filters.

Design Features

• Diameter: 43 mm
• Thickness: 7.4 mm
• Thin, electroplated aluminum frame with multiple grooves for easy handling and to prevent jamming on the lens
• Double-threaded design for stacking or attaching lens caps
• Five control points on the bezel corresponding to ND8, ND16, ND32, ND64, and ND128 for precise and convenient adjustment

Usage

This adjustable ND filter is suitable for landscape, outdoor portrait, and long-exposure photography, allowing photographers to replace multiple fixed ND filters with a single versatile accessory. It enables smooth exposure control, facilitating creative effects such as motion blur and shallow depth of field even in bright lighting conditions. The filter is compatible with wide-angle lenses due to its slim profile.

Additional Benefits

• Eliminates the "X" effect common in many variable ND filters
• Resistant to scratches, water, and oil for durability and easy cleaning
• Maintains natural color balance without tinting