Tuesday, September 9, 2008
High Dynamic Range Photography (HDR)
The HDR process involves combining several selectively exposed photographs of the same scene and merging them into a single image, providing a much greater tonal range than is possible with traditional low dynamic range images like those produced by today's digital cameras in a single shot. By exposing different images for the shadow, midtone, and highlight elements in a scene, it is possible to create one image that overcomes the 5-7 stop exposure value limits of most current digital cameras. You no longer have to lose shadow or highlight detail in scenes with dramatic differences between the darkest and brightest elements. By bracketing a series of images—shooting a number of photos in rapid succession at different shutter speeds—and running them through an HDR processor, you will create an image that has great detail gleaned from the tonal range of the all the source images. This photomerged image can then be printed or shared online.
If you would like to know more read this article:
I shot the photo above using +/- 2 EV. It was edited in Photmatix , www.photomatix.com . It can also be merged in Photoshop.