Comment by dylan604 Comment by dylan604 13 hours ago 1 reply Copy Link View on Hacker News How long of an exposure do you think they would be taking?
Copy Link jhayward 9 hours ago Collapse Comment - 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. Reply View | 0 replies
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.