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ExposureShutter, aperture, ISO, EV Depth of fieldTables for every lens Sensor sizesCrop factors compared Lens mountsFlange distances & adapters Print sizesPixels & DPI MegapixelsWhat resolution buys you ND filtersLong-exposure tables Aspect ratios3:2, 4:3, 16:9 … Social image sizesEvery platform EXIF tagsMetadata reference File formatsRAW, JPEG, HEIF … GlossaryPhotography terms A–Z

Photography glossary

Leading lines

Lines in a scene that guide the viewer's eye toward the subject.

More terms starting with L#

Long exposure
Looney 11 rule
Lens mount
Lens profile

Last updated October 03, 2026 · How we calculate · Sources

StingPhotography

Photography, by the numbers. Free calculators and an open-data reference for photographers — every number on this site is computed from published specifications and physics, not guesses.

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© 2026 StingPhotography. Data from Wikipedia & Wikimedia Commons (CC BY-SA), Wikidata (CC0), Lensfun (CC BY-SA), openMVG, GeoNames (CC BY), iNaturalist and ExifTool — see sources. Updated October 2026.

Try “Sony a7 IV”, “golden hour Paris”, “50mm f/1.8”, “fireworks”, “Portra 400”.