By MICHAEL PERKINS
THERE IS A GROWING DEBATE OVER THE RECENT EMERGENCE of a process called exposure fusion, which has been touted as an alternative , if not a replacement for, High Dynamic Range or HDR processing. Which camp you fall into depends greatly upon what look you want in your final image, and both processes can be generated within a popular program call Photomatix.
So, first, a bit of review: HDR blends multiple frames of the same subject, shot at differing degrees of exposure, basically deepening the lighter values and rescuing detail in the darker ones. This means that you can potentially create a composite photo which “sees” the entire range of values in the same intensity, somewhat like your own eye (the ultimate camera) sees them.
Photomatix’ other main flavor, exposure fusion, takes the same multiple exposures and weighs every pixel in each of them for its value, letting some pixels from all exposures ” show through” in the final composite. The range of tones from light to dark is far less dramatic than in HDR, producing an image that strikes some as more natural. It’s worth noting that exposure fusion processes faster and easier than HDR and produces none of its annoying “halo” around the periphery of objects.
One additional fun aspect of exposure fusion, for me, is in its ease of use in creating montage, or controlled double-exposures, as well as same-subject composites. In the above shot, you’ll see a particularly clean amount of transparency between the musicians at a museum and a shot of part of a sign advertising its theme statement. Moreover, exposure fusion operates with several supple contrast and compression slider switches that make very minute adjustments in a snap.
The current HDR / Exposure Fusion “face-off” can only be resolved by actual users’ results, the only thing that matters in photography. Hey, if you made a piece of cowhide light-sensitive with a mix of lemonade and Lestoil and found a way to make a print with it, then mazel tov and God bless.
It’s always, and only, about the pictures.