ThisK&F ConceptVariable Fader ND2-ND400 Filteris a 58mm variable neutral density filter providing an adjustable light reduction of 1 to 8.6 stops.This helps todarken the entire image evenly, allowing a photograph to be made with a wider aperture or slower shutter speed. By slowing the exposure time or increasing the aperture, it is possible to control the depth of field and blur movement easily.

Key features:

• Variable Neutral Density Filter
• Reduce Exposure by 1 to 8.6 Stops
• Darkens Entire Image
• Greater Control over Exposure Settings
• Allows Wider Aperture
• Optical Glass Construction
• Rotating Aluminum Filter Ring
• 58mm Front Filter Thread

* No Vignetting & Dark Cornering. The filter is designed with an ultra wide-angle design, the ultra slim filter frame is only 7.4mm, supporting lenses with focal lengths of 16mm, and wide angle lenses. Due to the difference in lens types and focal lengths the filter might be met with a dark”X” cross, this isn’t a quality problem, it can disappear via rotating the filter.