Nik Color Efex Pro Academic Version 4 Color Efex Pro 4 is the perfect launch pad for your creativity. Eighteen new and improved filters are part of a new generation of technologies available to provide more ways to explore, create, and achieve your final vision. Each filter includes Visual Presets that provide a preview of your image with recommended settings. Browsing them gives you a starting point to find a stylistic direction or specific look for your image. Easily combine enhancements to create stunning new looks. Filter Combinations let you stack filters for virtually limitless creativity. Adjustments for each filter provide control over the effects