HDR stands for High Dynamic Range. Cameras can basically take photos with 5 steps of light, from darker lights of shadows to bright lights from sun. HDR is the process of taking multiple photos at different light ranges and merging them together to create a photo with essentially no darker spots or super bright spots that aren’t in focus. You will most definitely use/need a tripod to work with HDR photography. Start by placing the camera in a spot you know will stay still while you try and snap up to five photos at different light ranges going from dark to light. When making your bracket exposures, always do so by adjusting the shutter speed and never the aperture. If you don’t do this right you will end up with multiple exposures with different depths of field which is never good. I’ve always noticed for most pictures that turn out good for me are when I take 5 original photos and merge them together. This will show the most details in all lights for the picture. But I’ve seen a lot of people only use 2-3 photos and create beautiful art. To merge photos together you will need a program like Adobe Photoshop or the best yet is PhotoMatix. This program is set up specifically for HDR work. HDR is newer to the photography world because it does take more digital skills to do. Over time people learn more and more techniques that allow them to have clearer and crisper photos. Usually people do two types of HDR work, some people do it right and allow the HDR process to enhance the photo. Then there are ones that are too cheesy and overdone. But everything is subjective to whoever the viewer is. Follow this link and you can see what an HDR image looks like.
[http://www.squidoo.com/digital-photography-hdr]