What Is the Sensitivity of a Photographic System?

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 70, No. 7, pp. 515–521
Abstract: The concept of informational sensitivity is derived intuitively as the gradient g = dD/dE divided by the product of Selwyn granularity and the square root of the area s of the spread function. When the diameter of the camera lens and the size of the final picture are held constant, the relative focal length of the camera lens for equal detail rendition varies directly with the product . The required exposure time then varies inversely with informational sensitivity . For a stationary camera, detail rendition improves as the focal length of the camera lens increases. But the exposure time also increases, and when the camera moves relatively to the scene, detail rendition is thus diminished from this cause and is optimum for a certain focal length. Examples are given to confirm these conclusions.
Publication Date: 1961-07-01
DOI: 10.5594/J14349
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J14349
Author(s): Fred H. PerrinResearch Laboratories, Eastman Kodak Company, Rochester 4, N.Y.
Copyright: © 1961 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. Sclwyn E. W. H. , “A theory of graininess,” Phot. J. , 75 : 571 – 580 ( 1935 ); 82: 208 (1942). EXTERNAL
2. Selwyn E. W. H. , “Experiments on the nature of graininess,” Phot. J. , 79 : 513 – 524 ( 1939 ); L. A. Jones and G. C. Higgins, “Photographic granularity and graininess. II. The effects of variations in instrumental and analytical techniques,” J. Opt. Soc. Am., 36: 203–227 (1946). EXTERNAL
3. Higgins G. C. Stultz K. F. , “Experimental study of rms granularity as a function of scanning-spot size,” J. Opt. Soc. Am. , 49 : 925 – 929 ( 1959 ). EXTERNAL
4. Zweig H. J. Higgins G. C. MacAdam D. L. , “On the information-delecting capacity of photographic emulsions,” J. Opt. Soc. Am. , 48 : 426 – 933 ( 1958 ). EXTERNAL
5. Wolfe R. N. , “Detail rendition by photographic systems as a function of exposure time,” J. Opt. Soc. Am. , 49 : 172 – 175 ( 1959 ). EXTERNAL
6. Wolfe R. N. Tuccio S. A. , “The Effect of the variables of a photographic system on detail rendition, with special reference to camera motion,” Phot. Sci. & Eng. , 4 : 330 – 340 , Nov.-Dec. 1960 . EXTERNAL

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J14349.json

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

Fred H. Perrin; What Is the Sensitivity of a Photographic System?, Journal of the SMPTE ( Volume: 70, Issue: 7, July 1961); SMPTE, 1961. Available at https://doi.org/10.5594/J14349

Snippet:

Fred H. Perrin; What Is the Sensitivity of a Photographic System?, Journal of the SMPTE ( Volume: 70, Issue: 7, July 1961); SMPTE, 1961. Available at https://doi.org/10.5594/J14349

HTML (ISO 690 compliant)

Preview:

Fred H. Perrin; What Is the Sensitivity of a Photographic System?, Journal of the SMPTE ( Volume: 70, Issue: 7, July 1961); SMPTE, 1961. Available at https://doi.org/10.5594/J14349

Snippet:

<span class="citation">Fred H. Perrin; <cite>What Is the Sensitivity of a Photographic System?</cite>, Journal of the SMPTE ( Volume: 70, Issue: 7, July 1961); SMPTE, 1961. Available at <a href="https://doi.org/10.5594/J14349" target="_blank" rel="noopener">https://doi.org/10.5594/J14349</a></span>

SMPTE's HTML Pub

Preview:

Fred H. Perrin; What Is the Sensitivity of a Photographic System?, Journal of the SMPTE ( Volume: 70, Issue: 7, July 1961); SMPTE, 1961
doi: 10.5594/J14349
url: https://doi.org/10.5594/J14349

Snippet:

<li>
Fred H. Perrin; <cite id="bib-10-5594-j14349">What Is the Sensitivity of a Photographic System?</cite>, Journal of the SMPTE ( Volume: 70, Issue: 7, July 1961); SMPTE, 1961
<span class="doi">10.5594/J14349</span>
</li>