CPL polarizer can reflections, increase color saturation, make the picture more transparent, improve the clarity and expressiveness of the picture, restore , and make the bluer and the water clearer. It is also often used to the scenery behind glass, which is clear and transparent. Water and underwater life. Explore the microscopic world through a mirror A macro lens shortens the focusable distance and magnifies photography. The degree of magnification is different at different magnifications. If you attach a close-up lens in front of a standard lens, its length change immediately. The higher the magnification, the higher the magnification and the shorter the length. The greater the magnification, the larger the image of the object being photographed. UV protective glasses can effectively weaken the blue caused by ultraviolet rays, increase light transmittance, and make the picture quality clearer. It is also a lens protector. All wonderful moments presented action camera filters The ultra-clear picture quality has no color cast and the highlight moments are worth savoring. The picture is super clear Lossless and color cast-free, the picture is always high-definition Show every detail in every frame Product Name: For Pro/ Filter Product size: 40x40x5mm Applicable models:For Insta360Ace Pro/ Product weight: 6g Filter type: MRCU UV Colour:Black Material:plastic + glass Package Contents: 1 x For Insta360Ace Pro/ filter Only the above package content, other products are not included. 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.