K&F 40.5MM KV34 Slim Variable/Fader NDX, ND2~ND400, Blue Coated

The K&F Concept 40.5mm KV34 Slim Variable ND Filter (ND2–ND400) provides smooth, adjustable light reduction from 1 to 8.6 stops, allowing precise exposure control without color shift. Its blue multi-coated, slim design helps minimize vignetting while enabling creative use of wider apertures and slower shutter speeds.

The K&F Concept 40.5mm KV34 Slim Variable/Fader ND Filter (ND2–ND400) is designed for photographers and videographers who need flexible exposure control in bright or changing lighting conditions. With a variable optical density range of 0.3 to 2.6—equivalent to 1 to 8.6 stops of light reduction—this filter evenly darkens the entire image while maintaining accurate color reproduction. It allows you to shoot with wider apertures for shallow depth of field or slower shutter speeds to create smooth motion blur, making it ideal for landscapes, waterfalls, streams, and creative video work. The blue multi-coated surface reduces reflections and glare, ensuring clear, high-quality images. Its slim aluminum frame minimizes the risk of vignetting on wide-angle lenses and provides smooth rotation for easy adjustment. Compatible with lenses featuring a 40.5mm filter thread, this variable ND filter is a compact and reliable addition to any camera kit.

Key Features:

• Variable ND2–ND400 with 1 to 8.6 stops of light reduction
• Optical density range of 0.3 to 2.6
• Even image darkening without affecting color balance
• Enables wider apertures and slower shutter speeds
• Ideal for long exposure and motion blur photography
• Blue multi-coated surface to reduce reflections
• Slim design to help prevent vignetting
• Durable aluminum filter ring