If you want to go further, use an extensive set of global controls such as brightness, contrast, saturation, structure, film types, toning, and much more to craft your image. What will you do with it? By using control points, you have the ultimate level of control over the tonality, color, and detail of your images, producing results that more closely meet your vision as a photographer. Film Emulation Silver Efex Pro emulates nearly 20 different black and white film types to recapture the classic black and white look.
From Nik Software: Virtually, all digital cameras inherently create unwanted imperfections known as noise.
Mastering the Nik Collection - 15: Dfine 2 (Intro)