Thread: Thank you, Sir.
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Old 04-26-2013, 08:48 PM   #9
NN5I
Carl, nn5i
 
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Join Date: Sep 2011
Location: Tallahassee, FL
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Quote:
Originally Posted by wa8yxm View Post
One word about photos.. They do not properly show [perspective] so you really can not tell without [stereo] photographs or shots from multiple angles taken under identical conditions.

Witness a Bank card commercial where the dog is as big as a horse.. If you look closly you find the dog is much closer to the camera.
That's true generally, but when the included angle is small, as for example a photo of a 44 foot object taken from 500 feet or more, the proportions are quite accurate between objects that are parallel to each other, for example the total length of a boat and the total length of a person lying fore-and-aft inside it. In this case the long axis of the boat and the long axis of the person inside it were not only parallel but actually coincident, so the proportions would be accurate no matter the angle or distance from the camera.
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