This set of three images, A Study in HDR 1-3, shows the results of high dynamic range imaging followed by tone-mapping for an interior scene lit by halogen lights as well as ambient light. The first image is the mid shot of 11 exposures, each approximately 1 stop apart. This shot is then the camera's automatic best exposure for the scene. The full EV range turned out to be 13.4 stops, slightly more than the Canon 5D Mk 2 working range of 11-12 EV. Auto White Balance was used throughout and the camera set upon a tripod. Manual mode was used to allow the large number of exposures to be made. The software used was Canon's Digital Photo Professional v3.9.3; Photomatix Pro (64-bit) v4.1; and Picturenaut v3.2 from HDRLabs. Apart from the HDR software the only significant post-processing was sharpening (via DPP) of the tone-mapped images followed by scaling down for posting.
The second image in the series is that from using Photomatix Pro, with its default settings. The third image is that from Picturenaut, using the Adaptive Logarithmic method and adjusted to my best eye.
This second image, that from HDR and tone-mapping via Photomatix Pro brings out the dark areas very well with the carvings, seat, printer and computer now seen with considerable detail. There is even some differentiation in the area of the light bulb of the main lamp. However, the shape of the light bulb (one of those spiral types) is not seen here. It is seen as such in the preview window of Photomatix Pro, but does not translate upon processing. The colour balance has altered slightly and is more what my eye sees. In particular, the colours in the prints have been rendered reasonably accurately.