Examples of focal length in a Sentence
Recent Examples on the Web
The size of the sun in your image will depend on the focal length of your camera lens.
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Ryan French, Space.com, 22 July 2025
Functionality: Being a prime lens, features are minimal beyond the aperture and focal length.
—James Abbott, Space.com, 23 May 2025
This made the humpback’s focal length—the distance between the eye’s lens and retina—shorter than expected, as Bolin tells bioGraphic’s Marina Wang.
—Margherita Bassi, Smithsonian Magazine, 21 May 2025
This system provides an equivalent focal length of 200mm, which would require a really big lens on a standard camera.
—Eric Zeman, PCMAG, 2 Mar. 2025
See All Example Sentences for focal length
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Ryan French, Space.com, 22 July 2025
Functionality: Being a prime lens, features are minimal beyond the aperture and focal length.
—James Abbott, Space.com, 23 May 2025
This made the humpback’s focal length—the distance between the eye’s lens and retina—shorter than expected, as Bolin tells bioGraphic’s Marina Wang.
—Margherita Bassi, Smithsonian Magazine, 21 May 2025
This system provides an equivalent focal length of 200mm, which would require a really big lens on a standard camera.
—Eric Zeman, PCMAG, 2 Mar. 2025
See All Example Sentences for focal length
Cite this Entry
“Focal length.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/focal%20length. Accessed 5 Aug. 2025.
Copy CitationMedical Definition
focal length
noun
: the distance of a focus from the surface of a lens or concave mirror
—symbol f
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