K&F Concept 40.5mm Nano-X CPL + Variable ND 2-32 Filter

K&F Concept 40.5mm Nano-X Multifunctional CPL + Variable ND 2-32 Filter

The K&F Concept 40.5mm Nano-X filter combines a circular polarizer (CPL) and a variable neutral density (ND) filter into a single lens accessory. It effectively reduces light intake, controls reflections, and darkens skies, while eliminating the "X" cross artifact commonly seen in wide-angle variable ND filters.

Optical Quality and Construction

Constructed from premium professional optical glass with multi-layer anti-reflective coatings, this filter ensures sharp, high-quality images with minimal reflection. The coatings also provide waterproof and scratch-resistant properties, enhancing durability and lens protection.

The frame is made from aluminum alloy and features a serrated edge for secure grip and easy installation. The ND adjustment ring is clearly marked from Min to ND32, allowing precise control over light reduction ranging from 2 to 32 stops.

Functionality and Usage

This 2-in-1 filter functions as both a circular polarizer and a variable ND filter, offering photographers and videographers versatile creative control. The CPL reduces glare and enhances color saturation, while the variable ND filter allows for precise exposure control in various lighting conditions.

Its advanced design prevents the "X" cross effect, ensuring uniform image quality across the frame, which is especially beneficial for wide-angle photography and videography.

Applications

• Landscape photography
• Long-exposure shots
• Video production

Key Features

• 2-in-1 filter combining Circular Polarizer (CPL) and Variable ND (2 to 32 stops)
• Eliminates "X" cross artifacts in wide-angle shots
• Premium professional optical glass with multi-layer anti-reflective, waterproof, and scratch-resistant coatings
• Minimum light transmittance of 0.7%
• Durable aluminum alloy frame with serrated edge for easy handling
• ND adjustment ring marked from Min to ND32 for precise exposure control
• Reduces reflections, darkens skies, and controls exposure in a single step

Specifications

• Filter Size: 40.5mm
• Functions: Circular Polarizer (CPL) + Variable ND (2 to 32 stops)
• Glass Material: Professional optical glass
• Coating: Multi-layer anti-reflective, waterproof, scratch-resistant
• Frame Material: Aluminum alloy
• Light Transmittance: Minimum 0.7%

Included in Package

• 1 × 40.5mm CPL + Variable ND 2-32 Filter