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I knew some people who used it to compare aerial photos (though generally a special device with mirrors was used).
by comonoid 2y ago
I knew some people who used it to compare aerial photos (though generally a special device with mirrors was used).
- hk__2 2y ago> though generally a special device with mirrors was used Maybe this: https://en.wikipedia.org/wiki/Blink_comparator https://en.wikipedia.org/wiki/Blink_comparator
- comonoid 2y agoNo, a modification of this: https://en.wikipedia.org/wiki/Stereoscope https://en.wikipedia.org/wiki/Stereoscope