Examples of focal length in a Sentence
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The best lenses for astrophotography often combine a fast aperture with a wide-angle focal length for capturing as much sky as possible.
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Harry Bennett, Space.com, 28 Aug. 2025
Although the telephoto lens of the V60 defaults to a 70mm optical focal length, Vivo's software can do a convincing crop to produce what is effectively a 100mm portrait shot.
—Ben Sin, Forbes.com, 26 Aug. 2025
The company claimed that with the open-source model, users can control lighting, time of day, color tone, camera angle, frame size, composition and focal length.
—Evelyn Cheng, CNBC, 1 Aug. 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
See All Example Sentences for focal length
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Harry Bennett, Space.com, 28 Aug. 2025
Although the telephoto lens of the V60 defaults to a 70mm optical focal length, Vivo's software can do a convincing crop to produce what is effectively a 100mm portrait shot.
—Ben Sin, Forbes.com, 26 Aug. 2025
The company claimed that with the open-source model, users can control lighting, time of day, color tone, camera angle, frame size, composition and focal length.
—Evelyn Cheng, CNBC, 1 Aug. 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
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 10 Sep. 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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