<b>Why Choose K&F Concept? </b> <br>1.Professional electronic accessories manufacturer. <br>2.Dedicated to provide products in high quality & good price. <br>3.All items meet Environmental Standards of RoHS, premium picked up. Shop with Guarantee. <p> <b>1. Slim Adjustable ND Filter </b> <br> Reduces the amount of light reaching the film without affecting the color. <br> Applies slow shutter speed under strong sunlight exposure. <br> Allows wider apertures, effectively decreasing depth of field. <br> Neutral density can be adjusted from ND2 to ND400. <p> <b>What't In Box <br></b> Slim Fader ND Filter <br> Microfiber Cleaning Cloth <p><b>NOTE: </b><br> This kit is compatible with all <b>52 mm lenses ONLY</b>, please verify your cameras's lens thread size before ordering.This number is always preceded by a <b>"ø"(diameter)</b> symbol <br> When using the ND filter to the maximum(ND400) or bigger degree density, it will appear <b>"X" spot or a blurry</b> in the picture,this is a normal phenomenon.<br> Suggestion:<b>Lower down</b> the density value gradually and reduce the aperture, until the facula disappeared.