8.3.2. Scale of a Photograph

Try these first

1. 1.

   What is the formula for calculating the scale of a photograph?

   Hint

   Think about how the camera settings relate to the picture's physical area.

2. 2.

   If the focal length is 60mm and the flying height is 300m with an average elevation of 50m, what is the scale?

   Hint

   Subtract the average ground elevation from the flying height before dividing.

3. 3.

   What does the scale of a photograph express?

   • The camera quality
   • The relationship between image size and actual size
   • The average ground elevation

   Hint

   Think about why we measure physical things.

4. 4.

   True or False: A higher flying height increases the scale of a photograph.

   • True
   • False

   Hint

   Consider how distance affects your view.

5. 5.

   If two photographs are taken at different heights but using the same focal length of 35mm, how do you determine which photo has a wider scale?

   Hint

   Focus on how flying lower affects viewing detail.

6. 6.

   Given a focal length of 24mm and an average elevation of 50m, if the flying height is increased to 200m, calculate the new scale and discuss its implications.

   Hint

   Consider how lower detail may affect planning.