Construct · 1 fields · 1 citations

hyperfocal distance: a standalone construct

One name. One construct. A landmark on the map.

● anchor · one construct, one field Nearest construct by meaning·not indexed
hyperfocaldistance1 CONSTRUCTHyperfocal distanceRAY · APPLIED OPTICS

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Photographic optics

the focus distance where a lens at a given aperture keeps everything from half that distance to infinity acceptably sharp.

The hyperfocal distance is the focus distance at which a lens, at a given aperture, renders everything from half that distance out to infinity acceptably sharp, making it the setting that yields the greatest depth of field. Ray's 2002 chapter Depth of field and depth of focus in Applied photographic optics derives it from focal length, aperture, and the chosen circle of confusion. The referent is a specific focus setting that maximises near-to-infinity sharpness for a given lens and aperture, widely used in landscape and street work to keep a whole scene in focus without measuring distances.[1]

Unit
The focus distance that puts infinity at the far edge of depth of field
Recovery means
Not applicable
Measured by
Computed from focal length, f-number, and the acceptable circle of confusion for the format

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Nearby constructs

circle of confusion1 fields · 2 citationsanchor · one construct, one fieldaperture3 fields · 3 citationsjingle · one word, three constructsconfusion3 fields · 3 citationsjingle · one word, three constructs

References

  1. Ray, S. F. (2002). Depth of field and depth of focus. In Applied photographic optics (3rd ed., pp. 215–233). Focal Press. https://doi.org/10.4324/9780080499253-22

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