About image compositing

• All image types are supported.
• The color space of the background image is used as the color space for the composited image.
• Image data is not appended to the data for the background image.
• 32-bit Windows operating systems are not supported. 

Steps to composite an image

1. Select a background image in the main window.
   
2. Select Tools -> Start Compositing. 
3. The compositing tool window appears. Select the image to combine from the Foreground Image dialog. A preview of the combined image is shown.
4. Select a compositing method and, if available, adjust the sliders and angles to get the effect you want. 

   Composite method	Contents
   Add	The background image and [Foreground Image] are added and images are combined.
   Average	The background image and the [Foreground Image] are combined in proportions of 50% each. If you want to change the proportion of the [Foreground Image], select [Weighted].
   Weighted	Set the proportion of the [Foreground Image] and then combine the background image and [Foreground Image].
   Lighten	The background image and the [Foreground Image] are compared, with only brighter portions of the [Foreground Image] being combined.
   Darken	The background image and the [Foreground Image] are compared, with only darker portions of the [Foreground Image] being combined.

   
    
5. Position the images. By default, the images are aligned along the center but you can adjust the position with the direction pad or by entering coordinates. 
   
6. Select Save As, specify the settings, select Save and then Continue to combine the images.
7. Select Close.

Good to know

• Both images must be RAW
• The same camera, or two cameras of the same model were used. 
• The ISO speed is the same.
• The highlight tone priority setting is the same.
• The original image sizes are the same.
• Auto Lighting Optimizer and Picture Style Auto are not available.