How to Use focal length in a Sentence

focal length

noun

• The shorter the focal length, the wider the field of view.
  — Jen McCaffery, Popular Science, 21 June 2023
• The larger the focal length, the smaller the field of view.
  — Cameron Johnson, Popular Mechanics, 10 Nov. 2020
• As the focal length narrows, the lens offers a wider view.
  — Stephen J. Beard, USA TODAY, 7 May 2021
• The location of the image depends on the properties of the lens (the focal length) and the distance from the object to the lens.
  — Rhett Allain, Wired, 2 May 2020
• With a focal length of up to 160mm, the Petzval lens was key for flashback scenes.
  — Jazz Tangcay, Variety, 2 July 2022
• Over time, though, lenses came to be measured by the distance of their focal length.
  — Allain Daigle, The Atlantic, 13 May 2018
• The focal length should be labeled somewhere on the eyepiece.
  — Mike Lynch, Twin Cities, 14 Jan. 2024
• Use the formula in No. 14, but insert your scope’s focal length for f.
  — Michael E. Bakich, Discover Magazine, 24 Feb. 2024
• This extra space makes the difference, as the zoom lens can pull off a convincing 2.5x zoom for a focal length of around 65mm.
  — Ben Sin, Forbes, 18 Dec. 2022
• The Pro Max camera boasts a 5x optical zoom, and allows for 120mm focal length.
  — Byrachyl Jones, Fortune, 12 Sep. 2023
• In the larger Pro Max, the extra space allows Apple to step up to a 5x telephoto lens at a 120 mm focal length.
  — Andrew Cunningham & Samuel Axon, Ars Technica, 12 Sep. 2023
• Aperture is measured in f-stops, which is a ratio of the focal length divided by the size of the camera’s opening.
  — Maren Estrada, BGR, 5 Aug. 2021
• For this, use a wide-​angle lens, with a focal length from 14 to 24 millimeters, with your camera on a stable tripod.
  — Eric Adams, Popular Mechanics, 15 July 2022
• This creates enough separation between the lens and the sensor to enable the longer focal length.
  — Jay Peters, The Verge, 18 Sep. 2023
• The illustration shows an eclipse at different focal lengths on a full-frame and a crop-sensor DSLR.
  — Michael E. Bakich, Discover Magazine, 24 Feb. 2024
• The shift from lens width to focal length likely arose in Hollywood for reasons of precision.
  — Allain Daigle, The Atlantic, 13 May 2018
• In this equation, s stands for sensor dimension in millimeters and f is the focal length of the lens in millimeters.
  — Michael E. Bakich, Discover Magazine, 24 Feb. 2024
• Lenses with a shorter focal length enabled Galileo to squint at insects as well as planets.
  — 1843, 2 July 2020
• As scientists carefully select the focal length of the laser optics, the probe can increase or decrease its rate of speed.
  — Discover Magazine, 12 Feb. 2019
• Fine details may also be captured by using a zoom lens at a medium focal length.
  — Deanna Chandra, San Diego Union-Tribune, 13 Nov. 2021
• Additionally, by blinking, the lenses can change their focal length, which amounts to being able to zoom in and out just as users do on their phones.
  — Maria Pasquini, PEOPLE.com, 29 July 2019
• Wide-angle lenses have a shorter focal length than standard lenses and provide a wider field of view.
  — Brandon Russell, Popular Mechanics, 29 Mar. 2023
• But at the right focal length, the image will be perfectly in focus in both directions, and that gives the cat an extra way of judging distance.
  — Helen Czerski, WSJ, 22 Oct. 2021
• The focal length is 65mm, up from the 52mm offering on the other iPhones with an advanced telephoto offering.
  — Jefferson Graham, USA TODAY, 6 Nov. 2020
• But engineers and DPs also weighed in on color and cinema glass, which was chosen for focal length and weight.
  — Michelle Bruton, Forbes, 9 Mar. 2023
• It’s the focal length (basically the distance the light travels inside the telescope) divided by the aperture.
  — Bob Beacham, chicagotribune.com, 9 Apr. 2021
• Second, smartphone cameras don't have a big enough focal length to really do anything with depth-of-field effects.
  — Ron Amadeo, Ars Technica, 18 Apr. 2023
• More Soft Robots The activated soft elastomer works to increase focal length by as much as 32 percent.
  — Daisy Hernandez, Popular Mechanics, 29 July 2019
• The lens focuses to about 9.8 inches (measured from the sensor) throughout its zoom range, so its largest macro magnification is at the 18mm focal length.
  — PCMAG, 6 Feb. 2024
• Resolution begins to dip around f/16 at all focal lengths due to optical diffraction, with pictures looking soft at the smallest f-stops.
  — PCMAG, 22 Mar. 2024

Last Updated: 9 Dec 2024