composite

Before and After of Astrophotography Composite Images

Before and After of Astrophotography Composite Images

Have you ever wondered how some photographs are made? For instance, astrophotography images are more often than not composite images - that is, multiple images of different exposures/scenes merged to make one single image. This is often necessary when shooting the night sky since the proper exposure for the sky (generally 10 to 30 seconds long) will typically leave the foreground completely black, especially if the moon is not out.