* 2. The top optical glass, the front and back of the lens takes on a double-sided multi-layer anti-reflection coating, which can effectively reduce the surface reflection of the filter and avoid the use of ghost images and other problems. The standard transmission rate of 1 black soft is 74%; (This sales argument must be emphasized, all competitive products do not have the coating out of the coating) The digital cameras are getting better and better with which the picture often seems "too sharp". What the filter does is to make the image look less digital. Skin tones are softly drained over the entire area and thus also highlights that arise from sweat or declining powder on the skin. Contrasts are reduced. A rather unspecific filter, which still has its use cases and has been an integral.
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