This is the before and after comparison of “The Wormhole (Exposure Fusion)“. While this is technically not an HDR but an exposure fusion, it was still created through a similar process from three individual source shots. In the top row, you see the original source images straight out of the camera. This image is based on a 3-shot autobracketing series with +1, -1 and -3 ev. On the left side on the bottom row, you see the result of merging those shots into a single shot with the exposure fusion option of Photomatix Pro 4.0. And finally, the right side of the bottom row shows the final image after a number of post-processing steps executed in Photoshop CS4.
The final image and a more detailed description of the post-processing steps can be viewed here. Click on the image below to view a bigger version.