K&F Concept 49MM Adjustable Black Mist 1/4 & Variable ND2ND400 Filter

The K&F Concept 49mm Adjustable Black Mist 1/4 & Variable ND2ND400 Filter combines diffusion and variable light reduction in a single, versatile tool ideal for both photographers and videographers seeking smooth exposure control and dreamy, cinematic softness.

This powerful 2-in-1 solution is designed for creators who need both atmospheric diffusion effects and flexible light control. It blends the soft-glow, lowered-contrast characteristics of a Black Mist 1/4 filter with the adjustable light-reduction capabilities of a variable ND, offering seamless transitions from ND2 to ND400. Its precision putter-style adjustment design provides smooth, accurate stop control, perfect for video shooters who require quick and repeatable exposure adjustments. Built from premium imported AGC optical glass with 28 multi-layer coatings, the filter ensures high-definition image quality while resisting water, scratches, oil, and mildew. Enhanced with K&F's self-locking frame technology, it eliminates the common X cross artifact found in many variable ND filters, especially when using wide-angle lenses. Durable, reliable, and highly versatile, this filter is an excellent all-around tool for cinematic video and creative photography.

Key Features

• 2-in-1 design Variable ND + Black Mist 1/4 diffusion
• ND2ND400 adjustable light reduction
• Softens highlights and reduces contrast for cinematic look
• Putter-style adjustable frame with precise stop markings
• 360 rotation for smooth exposure transitions
• Imported AGC optical glass with 28 multi-layer coatings
• Waterproof, scratch-resistant, oil-resistant, and anti-mildew
• Eliminates X cross effect on wide-angle shots

• 1 49mm Black Mist 1/4 & Variable ND2ND400 Filter
• 1 Protective Packaging/Case (if included by manufacturer)

• Size 49mm
• Type Variable ND (ND2ND400) + Black Mist 1/4
• Adjustment Putter-controlled, 360 rotation
• Glass Material Imported AGC optical glass
• Coating 28-layer double-sided nano coating
• Features Anti-scratch, waterproof, anti-oil, anti-mildew
• Technology Self-frame lock to avoid X pattern