What is HDR?
The acronym HDR stands for High Dynamic Range. In Adobe's implementation within Photoshop CS2 this is accomplished by using a series of photographs which one takes in the same manner as with previous blending techniques, and then using floating point 32 bit (per channel) math, merging these files automatically into one huge high dynamic range image.
HDR (High Dynamic Range) is basically merging 3 or more pictures (1 under exposed, 1 normal exposure, 1 over exposed) into one, by using digital photo editing sofware, photoshop, photomatix, etc, to truely be able to see all of the highlights and shadows that you would not be able to see in just 1 picture.

Almost all monitors, and other ways of displaying the HDR images have a limited dynamic range, so you have to convert the image into a viewable format called "tone mapping". pretty much a way to tap into how the human eye see's a scene, all of the dynamic range, while retaining a realalistic color and contrast.

this is one way of editing digital pictures. but my pictures are 3 image and tone mapped.

For more info google HDR photographs:

Here is a couple pic's that my son has done. he says good sun light helps out the overall effect of the picture. Will post up some more of his 450r when the weather gets better.

PLEASE ASK QUESTIONS AND POST UP SOME OF YOUR HDR PIC'S

OVERCAST SHOT:


INDOOR SHOT:


NIGHT SHOT OF HIS CAR:


SUNSET SHOT OF HIS 450R: