TABLE 1. Comparison of software packages tested.

 
Operation
Photoshop
Photomatix Pro
FDRTools
Hydra
Image selection
Interactive selection with CS4, basic selection in CS3.
Basic selection
Interactive selection of images and dynamic ranges
Crashed with use of more than 4 exposures
Image alignment
Automatic alignment with some manual adjustment available
Two options for automatic detection
Automatic alignment, with some manual adjustment available
Powerful automatic alignment, with extensive manual correction support; allows use of handheld brackets
Batch processing
Powerful tools but not well integrated with HDR functions
Will automatically process images in a folder with the bracket number specified
Extensive support but not as simple to use as Photomatix
Not available but available as Aperture (Apple Corp.) plugin
Tonemapping preview
Automatic update, likely to change in CS4 version
Fixed size real-time preview
Flexible sized automatic update preview, not real-time
Real-time preview available but buggy
Operating system
Windows, Mac OS X
Windows, Mac OS X
Windows, Mac OS X, Linux (under development)
Mac OS X
Cost at time of writing (educational version)
$300 USD
$40 USD
29 Euros
$30 USD
Preview version
30-day trial announced but not released as of this writing for CS4
Available
Available
Available