This tutorial quickly reviews how to use the Lightroom export plug-in for HDR processing in Photomatix Pro.
Step 1: Select photos and invoke the plug-in
You must first select the photos you want to process with Photomatix. The plug-in is intended to work primarily with bracketed photos, i.e. multiple photos of the same scene taken with different exposures.
Select your bracketed photos from either the Filmstrip or the Grid.
To invoke the plug-in, select File > Plug-in Extras > Export to Photomatix Pro.
You may also launch the plug-in by right-clicking the selected thumbnails and choosing Export > Photomatix Pro.