6. Ground Distances Measured by Aerial Photography Repeat Exercise 45 if the camera lens has an 8.25-in. focal length with an angular coverage of 72°.

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The question I would like assistance with is posted below. I am having trouble with all three questions, but I only request assistance with question number 46. Hopefully, I can figure out how to do the others with this assistance.

46. Ground Distances Measured by Aerial
Photography Repeat Exercise 45 if the
camera lens has an 8.25-in. focal length
with an angular coverage of 72°.
Transcribed Image Text:46. Ground Distances Measured by Aerial Photography Repeat Exercise 45 if the camera lens has an 8.25-in. focal length with an angular coverage of 72°.
44. Ground Distances Measured by Aerial
Photography The distance covered by an
aerial photograph is determined by both
the focal length of the camera and the tilt
of the camera from the perpendicular to
the ground. A camera lens with a 12-in.
focal length will have an angular cover-
age of 60°. If an aerial photograph is taken
with this camera tilted 0 = 35° at an altitude of 5000 ft, calculate to the nearest foot
the ground distance d that will be shown in this photograph. (Source: Brooks, R.
and D. Johannes, Phytoarchaeology, Dioscorides Press.)
60°
35°
45. Ground Distances Measured by Aerial Photog-
raphy Refer to Exercise 44. A camera lens with a
6-in. focal length has an angular coverage of 86°.
Suppose an aerial photograph is taken vertically
with no tilt at an altitude of 3500 ft over ground with
86°
an increasing slope of 5°, as shown in the figure.
C
Calculate the ground distance CB, to the nearest
5°
hundred feet, that will appear in the resulting pho-
tograph. (Source: Moffitt, F. and E. Mikhail, Pho-
togrammetry, Third Edition, Harper & Row.)
Transcribed Image Text:44. Ground Distances Measured by Aerial Photography The distance covered by an aerial photograph is determined by both the focal length of the camera and the tilt of the camera from the perpendicular to the ground. A camera lens with a 12-in. focal length will have an angular cover- age of 60°. If an aerial photograph is taken with this camera tilted 0 = 35° at an altitude of 5000 ft, calculate to the nearest foot the ground distance d that will be shown in this photograph. (Source: Brooks, R. and D. Johannes, Phytoarchaeology, Dioscorides Press.) 60° 35° 45. Ground Distances Measured by Aerial Photog- raphy Refer to Exercise 44. A camera lens with a 6-in. focal length has an angular coverage of 86°. Suppose an aerial photograph is taken vertically with no tilt at an altitude of 3500 ft over ground with 86° an increasing slope of 5°, as shown in the figure. C Calculate the ground distance CB, to the nearest 5° hundred feet, that will appear in the resulting pho- tograph. (Source: Moffitt, F. and E. Mikhail, Pho- togrammetry, Third Edition, Harper & Row.)
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