K&F Concept 77mm Magnetic ND Filter Set (ND8-ND128) with Ring Kit
Variable ND filter with magnetic adapter for quick swap, offering 3-7 stops light reduction and high-definition glass. Mixed feedback on magnetic strength alongside positive functionality
Highlights
- magnetic 1-second swap
- adjustable 3-7 stops
- multi-layer coatings for clarity
Pros
- magnetic quick-swap design
- 3-7 stop light reduction
- high-definition optical glass with minimal color cast
- multi-layer coatings for durability
- waterproof construction
Cons
- magnet strength reported as weak by some customers
Best For
Features
- Magnetic 1-second swap: filter attaches via magnetic adapter ring for quick swaps
- 3-7 stops light reduction with 28-layer nanocoated glass for color-neutral results
- Frame self-lock design to prevent X-cross on wide-angle and telephoto lenses
- Waterproof and scratch-resistant coating on both glass faces