This is a composite image. Two RAW files, processed in Lightroom, then merged in Photoshop with layer masking, to bring out the reflection and detail in the pond, while retaining detail in the night sky. First time trying this technique. I really wanted to bring out the Milky Way, reflected in the pond.
Exposure info: Background- f.2.8, 20 seconds, ISO 2000. Foreground f/2.8 30 seconds, ISO 8000