HDR photography is a technique that produce images with a very high dynamic range. To produce an HDR image, you take several shots at varying shutter speeds and combine them using a technique called tone mapping to produce the final photograph.
Hydra Pro 3 will allow you to combine up to seven exposures of a scene to wring out the most dynamic range so skies don't get overexposed and shadow details aren't lost. This new version has a 12-preset tone mapper, ghost artifact removers, cropping tools, batch processing and export to Facebook, Flickr, Lightroom, Aperture and OS X Mail. You can create a frame around you
