THE PHOTOGRAPHER'S CHOICE FOR PHOTOGRAPHIC FILTERS 
Color Efex Pro 4 provides the most comprehensive set of enhancements for color correction, retouching, and creative effects. Quickly stylize your photographs, retouch portraits with ease, and extend your creativity with unmatched control and versatility. 

System Requirements – Color Efex Pro 4 

Windows® XP, Windows Vista® and Windows 7 
AMD or Intel® processor 
2 GB RAM available (4 GB or higher recommended) 
32-bit and 64-bit compatible 
Photoshop Cs6*