What filter is Close-up +4?

Closeup+4 is an analog film filter, which can make images clearer, sharper and more vivid, and increase details and color contrast.

Filter is an image processing technology, which changes the appearance of an image by adding specific colors and special effects to it. It can help the photographer to change the color in the image, change the tone of the image, blur the image, increase the beautification effect and make the image more vivid and prominent. Filters can also enhance the details of the image, make the image clearer and improve the image quality.