In chapter 5 or out free Nik Color Efex Pro 4 tutorial we take a look at the Pro Contrast filter. This isn't a new filter but it does give fantastic control over the contrast and areas of brightness in your image.
Throughout the course of this tutorial we'll take a single image from the original RAW through to a finished image. This video is one part of a multi-part free video tutorial and review. You can find the other parts at photowalkthrough.com/tutorial23.