JF Ptak Science Books Quick Post
Here's something I never thought of before--how color air recon photography changed the application of camouflage. Aerial photography used to reveal the hidden segments of an enemy's position was almost exclusively limited to black and white film in the two decades or so following WWI. Color films were far slower and evidently not suited to the task until the late 1930's--therefore, it seems, camouflage was prudently directed to disguise objects from aerial surveillance with those limitations in mind. As this cover for an article in Popular Mechanics suggests, all that changes with the invention of faster color film that made the b+w film obsolete, and changed the way camo was used to confront mile(s) high observation. (I also suspect that this was available to the U.S. armed forces well before this article was published...)
[Popular Mechanics, April, 1929, page 497.]
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