1/320s f/5.0 50mm ISO 100 Lens: EF 50 f/1.2L (click to see all my photos with this lens) Processing: the mountain in the background was indeed there, but not visible at the time I took the main picture because of the snow falling. I used another mountain view. The tricky part was to add snow flakes to this part of the image. I picked some in the main pic and multiplied them.