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The Nik Collection is free and compatible with Mac OS X 10.7 through 10.10; Windows Vista, 7, 8; and Adobe Photoshop through CC 2015. We have no plans to update the Collection or add new features over time.

HDR Efex Pro 2 Tour

Image Selection Dialog

The Image Selection dialog is available in Photoshop and makes it possible to select the images to merge together into an HDR image. You can access this dialog either through the File > Automate > Merge to HDR Efex Pro 2… option or through the Nik Selective Tool. If using Lightroom or Aperture, you will not see this dialog page; simply select all photos to merge in Lightroom or Aperture.

1 Source Files List
The files to be merged are displayed in this area. When using the Open button, file names will be displayed after being selected in a file browser. When working with Photoshop, open image files are only displayed after being selected with the Add open files button. When working with Bridge, the images selected in Bridge will automatically be added to this list.

2 Open Button
Clicking on this button will open a file browser to select images to be merged.

3 Remove Button
Clicking on this button will remove the highlighted image(s) from the File List.

4 Add Open Files Button
Clicking on this button will open all of the images currently open inside of Photoshop, and will add them to the Source Files list.

5 Create Smart Object Checkbox (Requires Photoshop CS4 or later)

Checking this box will enable HDR Efex Pro 2 to run as a Smart Object. When HDR Efex Pro 2 is applied as a Smart Object, the image stays in 32-bit per channel and settings and adjustments can be modified at a later time, even after the image has been saved and closed.


Note: After applying HDR Efex Pro 2 as a Smart Object, the image remains in the 32-bit per channel color mode. This ensures that the full range of detail is retained and makes it possible to adjust the tone mapping settings without any loss of color or tonal detail. It is important to note that 32-bit per channel images can only be saved in certain file formats. In order to save the image into popular image formats such as a JPEG or TIFF file, the image must be converted into either the 8- or 16-bit per channel mode. Once the image is converted, the image will no longer be a Smart Object. If it is desired to maintain the ability to modify the image further, it is recommended to save a 32-bit version of the image as a Smart Object prior to converting to 8- or 16-bit.

To convert to 8- or 16-bit, navigate to the Image > Mode menu and select either the 8 or 16 bits/channel options. Click OK to accept the warning and then click on the Merge button. Next, the Photoshop HDR Toning dialog will show up. In order to prevent tone mapping the image a second time, make sure to select the Exposure and Gamma option from the Method drop down menu. Click OK to complete the conversion to 16-bit.


6 Cancel
Click Cancel to close HDR Efex Pro 2 without processing your photo or photo series.

7 Merge Dialog
After selecting the photos to merge, click this button to proceed with creating the HDR image.

Next: Merge Dialog >


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