K&F Concept 55mm Variable ND2-400 ND Lens Filter 1-9 Stops Adjustable Ultra-Thin Optical Glass

The K&F Concept 55mm Variable ND2-400 Lens Filter, D Series, is crafted from high-quality optical glass.

Key Features:
* Precision Optics: Made from top-tier Japanese optical glass with double-sided 24-layer enhanced coating, effectively reducing surface reflections and preventing glare during prolonged exposures.
* Enhanced Water Resistance: Features a multi-layer waterproof coating that causes water to bead for easy cleaning.
* Versatile Light Control: Offers 1 to 9 stops of adjustable light reduction with 360-degree rotation for precise dimming settings, suitable for diverse photography scenarios. (Note: High settings may cause a temporary "black cross" effect).
* Slim and Secure Design: At just 7.4mm thickness, its CNC-patterned design provides enhanced friction for easy attachment and detachment.
* Glare-Free Surface: Treated with an oxidized sandblasting process to prevent unwanted stray light and minimize reflections on the metal surface.
* Dimensions: 55mm diameter, 7.4mm thickness.
* Material: Optical Glass.
* Compatibility: Suits all 55mm lenses (requires a 58mm lens cap).