Step 2: Load your differently exposed photos
To load your photographs with different exposures, first click on the HDR menu and then click on Generate.
Click the Browse... button and navigate to the folder where your differently exposed photographs are located. Select the images you want to load and then click the Select button.
You will then be returned to the Generate HDR window. Click the OK button to go to the next step.
The photographs you loaded will serve as the foundation from which Photomatix will build your HDR image.
Note: Do NOT open your photographs with the Open command in the File menu as this will take up a large amount of memory and slow down processing.