My question is similar to this one, but I don't know how accurate the formula will work with old photos.
If I assume that the runners would be 1m80 (5'11"), would it possible to estimate how far behind the 2 runners to the right in the picture are?
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Sign up to join this communityMy question is similar to this one, but I don't know how accurate the formula will work with old photos.
If I assume that the runners would be 1m80 (5'11"), would it possible to estimate how far behind the 2 runners to the right in the picture are?
You're missing a key piece of information that is necessary in order to determine the distance and that either is the distance from the camera to the first runner or the focal length of the lens.
Without this you can't estimate distances. Long focal length lenses are known to "compress" depth, this means that objects at different distances appear roughly the same size, wide angle lenses do the opposite.