Apollo 11: Photos by Armstrong and Aldrin

The specially-designed camera that Armstrong used was fitted with a reseau plate, a piece of engraved glass between the lens and the film which added cross-hatches to the photos, creating a grid that NASA scientists would later use to analyze the images.
NASA

Precise
The specially-designed camera that Armstrong used was fitted with a reseau plate, a piece of engraved glass between the lens and the film which added cross-hatches to the photos, creating a grid that NASA scientists would later use to analyze the images.

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