The moon spans only about half a degree. With a 200 mm lens it's under 2 mm on the sensor. Enter your lens and camera to see the moon's size in pixels and how big a share of the frame it fills — and what focal length makes it dominate a landscape.
How it works
Moon diameter on sensor ≈ f × tan(0.518°) ≈ f ÷ 110.
FAQ
Why does the moon look small in photos?
Our eyes exaggerate it near the horizon (the moon illusion); the camera records its true half-degree size.
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