K&F Concept K&F CONCEPT 40.5mm Slim Variable ND2 to ND400 Neutral Density Filter with Cleaning Cloth

• Amazon now offers K&F CONCEPT 40.5mm Adjustable Neutral Density Filter Variable ND2-ND400 with Cleaning Cloth, now $22.99 (list price $25.99).
• AI Review Summary: ⭐Amazon rating: 4.5 / 5 (12,678 Reviews). Many users say this lens filter delivers solid image quality, noticeable light reduction, and smooth ND2 to ND400 adjustment.
• Prime members get free two-day shipping, and regular members get free shipping on orders over $35 within the contiguous U.S.
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Editor's Pick: When you want to shoot video in daylight with a wide aperture but worry about overexposure, just twist the filter ring to bring the light down, no need to swap between fixed-stop ND filters. The glass uses AGC optical glass with multi-layer coating, so that grayish glare in backlit shots is greatly reduced. The frame is only 7.4mm (0.29 inches) thick, so vignetting is less likely even on wide-angle lenses. The rotating ring has a CNC texture, making it easier to grip and turn than a smooth surface. Whether you're shooting waterfalls and streams with long exposures, or portraits with shallow depth of field under bright sun, it can help.

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