Examples of focal length in a Sentence
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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
Longer focal length usually indicates sharper eyesight, so this was one sign that humpbacks may have poor vision.
—Margherita Bassi, Smithsonian Magazine, 21 May 2025
See All Example Sentences for focal length
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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
Longer focal length usually indicates sharper eyesight, so this was one sign that humpbacks may have poor vision.
—Margherita Bassi, Smithsonian Magazine, 21 May 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 28 Jul. 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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