HDR Expose 2 is the latest version of the professional HDR image creation program from Unified Color. This is a major upgrade that includes real-time processing, automatic halo reduction, and improved batch processing. It is a full feature application that provides much more than just tone mapping capabilities.
HDR Expose 2 performs all of its operations in the full 32-bit Beyond RGB Color Space which gives you direct access to the full human-perceptible color range while you are working. What this color space does is it separates the brightness channel from the color channel and that provides for better processing and little to no color shifts or halos.
With its completely redone architecture, improved performance, and new tools this makes for a significant release. For full system requirements check out the requirements page on the Unified Color website. You can also compare the feature details between the three versions of HDR products on their comparison page.
With HDR Expose you can create an HDR image by merging multiple exposure images individually or by dragging and dropping the images into the system and performing the merge. You have options to align images to handle ghosting artifacts which can occur due to slight differences in between each exposure.
Once you merge the images you are presented with a screen that gives you the ability to manipulate the image. The first area is the brightness histogram that displays the image brightness channel in EV units (f-stops). You can then use the Display Zone (the highlighted range) to see changes in your image. If you want to zoom in on your image you can use the navigator to set the zoom amount and then pan around the image.