Why visual size of the Earth is not 3,6 times bigger on some of the Apollo footage videos and photos taken from the Moon surface?

Question

Edit title – 3,6 times bigger than visual of the Moon we see here on the Earth surface?

In: Mathematics

Answer 1

How do you know it is not?
What images with the same focal length of the same film size have you compared the images to? Or compared the same focal length equivalent on smaller film size.

How large the moon is in the frame depends on the focal length and film size. compare how the moon looks on a cellphone image compared to a camera with a lot of magification. It is a small dot vs a full-frame moon.

The 3.6x is only the radius difference. The area of the earth in the sky is the cube of that so 13.4x larger area.