K&F 37MM KV34 Slim Variable/Fader NDX, ND2~ND400, Blue Coated

The K&F Concept 37mm KV34 Slim Variable ND Filter (ND2–ND400) offers smooth, adjustable light reduction from 1 to 8.6 stops, giving photographers and videographers greater creative control over exposure. Its blue multi-coated, slim design ensures even image darkening with no color shift and minimal vignetting.

The K&F Concept 37mm KV34 Slim Variable/Fader ND Filter (ND2–ND400) is a versatile exposure control tool designed for shooting in bright or changing light 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 without altering color balance. It allows the use of wider apertures for shallow depth of field or slower shutter speeds to capture motion blur, making it ideal for landscapes, waterfalls, streams, and creative video work. The blue multi-coated surface helps reduce reflections and glare while maintaining image clarity. Its slim aluminum frame minimizes the risk of vignetting on wide-angle lenses and provides smooth, precise rotation for easy adjustment. Compatible with lenses featuring a 37mm 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 color cast
• Enables wider apertures and slower shutter speeds
• Ideal for long exposure and motion blur effects
• Blue multi-coated surface to reduce reflections
• Slim design to help prevent vignetting
• Durable aluminum filter ring