Adjustable ND Filter Fader K&F Concept Nano-X ND2-ND32 62mm

Material and Optical Quality

The K&F Concept Nano-X adjustable neutral density (ND) filter fader is made of hardened optical glass, ensuring high durability and resistance to mechanical damage such as scratches, cracks, and chips. The filter features numerous anti-reflective nano-coatings that protect against glare, water, and oily stains, making fingerprints and dirt easy to clean. These coatings also prevent color tinting and eliminate the characteristic "X" effect commonly seen in amateur adjustable ND filters.

Filter Specifications

• Diameter: 62 mm
• ND Range: ND2x to ND32x (ND0.3 to ND1.5), providing light reduction from 1 to 5 f-stops
• Material: Hardened optical glass with an aluminum frame
• Frame: Lightweight, galvanically blackened aluminum with thin ring design to minimize vignetting on wide-angle lenses
• Double threading allows attachment of additional accessories or a protective case cap

Design Features

The aluminum frame is profiled to prevent jamming and facilitate smooth adjustment, installation, and removal. The thin ring design is optimized for wide-angle lenses to avoid unsightly vignetting. Note that the output thread is one degree higher than the input thread.

Usage

This adjustable ND filter fader replaces multiple fixed ND filters by allowing infinite adjustment of light reduction, making it ideal for landscape photography and outdoor portrait sessions, especially in bright conditions requiring wide apertures and short exposure times. The filter ensures uniform dimming across the entire frame without introducing color shifts or the "X" effect.

Advantages

• Exposure control from 1 to 5 f-stops
• Anti-glare and protective nano coatings improve image quality and protect the glass surface
• High-quality hardened optical glass for durability
• Resistance to scratches, water, and oil
• Eliminates the "X" effect at extreme ND values
• Lightweight and durable aluminum frame

Compatibility

• Screw-in filter compatible with lenses having a 62 mm filter thread diameter