3 ms·

How long of an exposure do you think they would be taking?

• jhayward 9mo ago
  It's not uncommon for older aerial photos to be single-pixel lines that the film is moved past. The motion of the film is correlated with the motion across the ground, so you can reconstruct a 2nd axis from the exposure. There's no shutter speed, it's continuous.
  • dylan604 9mo ago
    "We helped map the Kerrville floods" "It's not uncommon for older aerial photos" The Kerrville floods were last summer