Merge photos to HDR in Photoshop

Note: You must have Photoshop CS3 10.0.1 or later installed on your computer for this feature to be available.
  1. In the Library module or Develop module, select two or more photos to merge to HDR.
  2. Choose Photo > Edit In > Merge to HDR In Photoshop.
  3. Specify options in the Merge To HDR dialog box, or just click OK.

    Photoshop merges the photos into a background layer in one HDR image.

  4. Edit the image as desired.
    Note: In order for the newly saved photo to be automatically added to the Lightroom catalog, it must be converted to 8 or 16 bits per channel before being saved.
  5. Choose File > Save.

    The saved photo is automatically added to the Lightroom catalog as a TIFF file.

Important: When saving from Photoshop, be sure to turn on the Maximize Compatibility option so that Lightroom can read the images. Photoshop CS3 and later automatically save PSD files from Lightroom with maximum compatibility.