The Trinity Site Atomic Bomb Test is not an image using X-ray film to photograph high-energy particles as they explode–it is probably the first pinhole image of the atomic bomb mushroom cloud in New Mexico, undoubtedly made with a view-camera with a pinhole attached to its lens board rather than a lens.
With the advent of nuclear energy in the 1940s, pinhole cameras began to find their way into nuclear physics to image high-energy particles because it was discovered that a photographic lens absorbs rather than projects high-energy X-rays or gamma rays, whereas a pinhole will produce an image.
-Eric Renner
Photo Info:
Trinity Site Atomic Bomb Test
Photo By: Los Alamos National Laboratories
Excerpt from:
Pinhole Photography: From Historic Technique to Digital Application
by: Eric Renner