Wikipedia states that “photographs of Baker are unique among nuclear detonation pictures”:
The blinding flash that usually obscures the target area took place underwater and was barely seen. The clear image of ships in the foreground and background gives a sense of scale. The large Wilson cloud and the vertical water column are distinctive Baker shot features, making the pictures easily identifiable.
The photograph above is an eerily beautiful image shot from 3.5 miles away showing the massive vertical water column. Check out this high-resolution version of the photo for a closer look.
Here’s a crop to give you a better sense of scale. That black thing on the right side of the column is one of the massive ships being lifted into the air: