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2 cards from this section. Quick, good the night before a test.
What is the formula to calculate the scale of a photograph?
Remember to convert everything to the same units.
If a flying height is 1500 m and focal length is 25 cm, what is the scale?
Determine the average elevation first.
What does a scale of 1:5000 indicate?
Consider how the ratios translate in real fractions.
True or False: Relief displacement is the same for all terrain heights.
Think about how height affects visual representation in photos.
A camera at a 2000 m altitude captures a 60 m high building. If the image of the building displays a relief displacement of 30 mm, determine the flying height using the displacement formula.
Start solving through the formula.
In a photography survey, the flying height can be shifted. If at 1800 m we have three terrain heights measured as 200 m, 500 m, and 350 m, determine the maximum visible scale using the plane's performance ratio.
Remember how focusing on the tallest structure can affect the scale calculations.
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