Seim Effects Photo Tools' ColorFlow -- a preset collection engineered by photographer Gavin Seim -- allows photographers to deliver subtle or bold image variations. For even greater control, users can mix and blend color effects for desired mood or visual theme, all while leveraging the power of Aperture, Apple's software for professional photographers.

The ColorFlow presets collection organizes more than 60 presets across five categories of color tools: Essential Color, Color Story, Film Inspired, Hollywood Cinema and Color Toners. These place the nuances and hues of an image at your fingertips, encouraging you take control and deliver the kinds of images you "see" in your mind's eye.

Seim Effects' ColorFlow preset collection for Aperture (version 3 and newer) is now available. Until April 10, there's an introductory price of US$39 (a $10 discount). To purchase or for more information plus a Virtual Demo and to view an informative video about the Seim ColorFlow preset collection, go to http://seimeffects.com/colorflow/ .