Examples of focal length in a Sentence
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Supporting this is a multi-camera array designed to work across various focal lengths.
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New Atlas, 27 Apr. 2026
Bloch captured the images on a Canon R5 II, with a 600 mm f/4 prime lens and a 2x teleconverter, for an effective 1,200mm focal length.
—Robert A. Cronkleton
march 31, Kansas City Star, 31 Mar. 2026
Pros & Cons The Canon RF 50mm F1.4 L VCM ($1,549) is the company's first RF prime with the classic 50mm F1.4 optical formula, a versatile prime focal length that's a good fit for everyday photography, portraits, and other photos that isolate a subject from the background.
—Jim Fisher, PC Magazine, 16 Mar. 2026
Shutter speeds typically range from 10 to 25 seconds when using wide-angle lenses, depending on focal length (longer lenses require shorter exposures to avoid star trailing).
—Jamie Carter, Space.com, 10 Mar. 2026
See All Example Sentences for focal length
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New Atlas, 27 Apr. 2026
Bloch captured the images on a Canon R5 II, with a 600 mm f/4 prime lens and a 2x teleconverter, for an effective 1,200mm focal length.
—Robert A. Cronkleton
march 31, Kansas City Star, 31 Mar. 2026
Pros & Cons The Canon RF 50mm F1.4 L VCM ($1,549) is the company's first RF prime with the classic 50mm F1.4 optical formula, a versatile prime focal length that's a good fit for everyday photography, portraits, and other photos that isolate a subject from the background.
—Jim Fisher, PC Magazine, 16 Mar. 2026
Shutter speeds typically range from 10 to 25 seconds when using wide-angle lenses, depending on focal length (longer lenses require shorter exposures to avoid star trailing).
—Jamie Carter, Space.com, 10 Mar. 2026
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 1 May. 2026.
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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