K&F CONCEPT VARIABLE ND2-400 HMC 49MM FILTER C-SERIES

K&F CONCEPT VARIABLE ND2-400 HMC 49MM FILTER C-SERIES

K&F CONCEPT Variable ND2–400 HMC 49mm Filter C-Series is an ultra-slim, professional-grade variable neutral density filter designed for photographers and videographers who demand precise light control in bright conditions. Offering smooth, stepless adjustment from 1 to 8 f-stops, this Variable ND filter puts exposure control literally at your fingertips—simply rotate the filter to instantly reduce incoming light. Crafted with high-precision Japanese optical glass and housed in a lightweight aircraft-grade aluminium frame, it delivers outstanding image clarity, accurate colour reproduction, and minimal vignetting, even on wide-angle lenses. The advanced multi-layer, double-sided coatings reduce reflections and glare, improve light transmission, and add waterproof and scratch-resistant protection for long-term durability. Whether you’re extending shutter speeds for silky water and dramatic cloud motion, shooting wide-open apertures for beautifully shallow depth of field, or achieving cinematic video exposure without changing shutter speed or ISO, the K&F Concept Variable ND Filter acts as a powerful “fourth exposure control.” Compact, versatile, and replacing multiple fixed ND filters in one, it’s the perfect all-round ND solution for creators who want maximum creative freedom with minimal gear. Master the light, streamline your kit, and unlock new creative possibilities with the K&F Concept Variable ND2–400 HMC 49mm Filter—professional performance at an exceptional value.

Key Features:

• Variable ND2–400 (1–8 f-stops) for precise, stepless exposure control

• 49mm C-Series filter compatible with lenses using a 49mm thread

• Ultra-slim 3mm aluminium alloy frame to reduce vignetting

• High-quality metallic construction with smooth rotation and excellent grip

• Japanese high-precision optical glass with double-sided polishing

• 18-layer multi-coating for reduced reflections, glare, and ghosting

• High light transmittance for sharp, high-contrast images up to 8K resolution

• Waterproof and scratch-resistant coatings for durability in outdoor use

• Double-threaded frame allows stacking with other filters

• Ideal for long exposures, shallow depth of field, and cinematic video

• Replaces multiple fixed ND filters, reducing gear and setup time

• Includes protective plastic carrying case for safe transport and storage

In the box:

1 x K&F Slim Variable ND filter ND2-400
1 x Plastic Carrying Case