Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si <br> 1. Glass, and Scratch-resistant.<br> 2. Multi-layer coating<br> 3. Aluminum alloy frame, resistance.<br> 4. 9H hardness,scratch without leaving a mark.<br> <br> Polarizing () Filter:<br> 1. Polarizing filter eliminates reflections from non-metallic surfaces, and increases contrast and color saturation.<br> 2. Removes unwanted reflections from surfaces such as water and glass.<br> ND Filter:<br> 1. Reduce an amount of visible light that enters the lens, allowing the user to utilize apertures or slower shutter speeds, particularly in bright conditions.<br> 2. Work especially well for portraits by allowing the photographer to reduce the depth of field, producing pleasant background while keeping the subject in focus.<br> 3. Emphasize movement by permitting slow shutter speeds in bright light, giving life to photos that would otherwise look freeze in time.<br> 4. This particular filter is multi-coated to minimize reflection on the filter , which reduces flare and ghosting, and produces contrast and well-balanced color.<br> ND filter set weight:about 90g<br> filter weight:about 68g<br> ND 8 16 32 filter:about 83g<br> Colour:As Shown<br> Material:Glass<br> <br> Package Contents:<br> 1 * ND 8 Filter<br> 1 * ND 16 Filter<br> 1 * ND 32 Filter<br> 1 * Filter<br> <br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.