K&F Concept 40.5mm Slim Variable Fader ND2 to ND400 Neutral Density Filter Optical Glass

The K&F Concept 40.5mm Slim Variable Fader ND Filter is crafted from premium AGC optical glass with 8 multi-layer coatings, designed to deliver superior image quality by reducing reflections and glare.

Features:
* **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.
* **Glare-Free Surface:** Treated with an oxidized sandblasting process to prevent unwanted stray light and minimize reflections on the metal surface.
* **Slim and Secure Design:** At a mere 7.4mm thickness, its CNC-patterned design ensures enhanced friction for easy attachment and detachment.
* **Import Optical Glass:** Made from high-quality AGC optical glass with multi-layer coatings for durability and optical clarity.
* **Compatibility:** Designed for all 40.5mm lenses. A 43mm lens cap is required for this variable ND filter.

Note: At maximum stops, a cross-pattern effect (X black cross) may occur. This is a natural and temporary phenomenon due to the adjustable ND filter's interaction with specific lenses and focal lengths.