K&F Concept 49MM KV34 Slim Variable ND Filter ND2ND400

The K&F Concept 49mm KV34 Slim Variable ND Filter (ND2ND400) provides smooth, adjustable light reduction from 1 to 8.6 stops, giving you precise control over exposure without color shift. Its blue multi-coated, slim design helps minimize vignetting while enabling creative shooting with wider apertures and slower shutter speeds.

This filter is designed for photographers and videographers who need flexible exposure control in bright or changing lighting conditions. Featuring a variable optical density range of 0.3 to 2.6 (equivalent to 1 to 8.6 stops of light reduction), it evenly darkens the entire image while preserving natural color balance. It allows the use of wider apertures for shallow depth of field or slower shutter speeds to capture smooth motion blur, making it ideal for landscapes, waterfalls, streams, and creative video work. The blue multi-coated surface reduces reflections and glare, helping maintain image clarity. Its slim aluminum frame minimizes the risk of vignetting on wide-angle lenses and ensures smooth rotation for precise adjustment. Compatible with lenses that have a 49mm filter thread, this variable ND filter is a compact and reliable addition to any camera kit.

Key Features

• Variable ND2ND400 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

• Filter Type: Variable Neutral Density (ND)
• Exposure Reduction: 1 to 8.6 stops
• Optical Density: 0.3 - 2.6
• Coating: Blue Multi-Coated
• Ring Material: Aluminum
• Thread Size: 49mm
• Front Accessory Thread: No