A Simplified Motion-Picture Laboratory Control Method for Improved Color Duplication

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 85, No. 10, pp. 781–786
Abstract: Motion-picture laboratories contend with several sources of variability in producing consistent, high-quality prints, especially in the case of color reversal intermediate (CRI) and interpositive-duplicate negative duplicating systems. What has been lacking is a simple, inexpensive, easily implemented, and universally adopted control method for the production of interpositives and duplicate negatives from negative originals. We propose a control method based upon the concept of LAD — Laboratory Aim Density. A standard film patch is specified at densities midway between the minimum and maximum typically obtained for normal camera exposure. All other material in a production (regardless of film type or origin) is timed with respect to this standard patch. Laboratory Aim Densities are specified, and tolerances are suggested, for the print-through of the standard patch for each film type onto which the original or intermediates may be printed. These Laboratory Aim Densities are chosen to be at the center of the usable straight-line portions of the duplicating film's characteristic curves. Within the tolerances of normal film, printer, and process variability, consistent duplicates having good tone and color reproduction characteristics will be obtained from the original. This method may be adapted also for obtaining color internegatives from reversal camera film originals.
Publication Date: 1976-10-01
DOI: 10.5594/J07544
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J07544
Author(s): John P. Pytlak
Alfred W. Fleischer
Copyright: © 1976 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Response Functions for Color Densitometry [Active]
Computerized Process and Printer Control: Part I: Color Positive Developing Control and Printer Tape Preparation [Active]
An On-Line Computerized Light Valve Monitor System [Active]
Computerized Process and Printer Control Part II: Printer Control [Active]
A New Photometer for Control of Color Printers [Active]
Techniques in Color Duplication [Active]
A Method for Reporting Exposure on Motion-Picture Color Negatives [Active]
10. SMPTE Laboratory Practice Committee , Control Techniques in Film Processing , SMPTE , New York , 1961 . EXTERNAL
11. Manual for Processing Eastman Color Films , Eastman Kodak Co. Publ. No. H-24. EXTERNAL
12. Daniel Cuthbert Wood Fred S. , Fitting Equations to Data , Wiley-Interscience , New York , 1971 . EXTERNAL
5. Jones Loyd A. Condit H. R. , “Sunlight and Skylight as Determinants of Photographic Exposure: II,” J. Opt. Soc. America , 39 : 94 – 135 , Feb. 1949 . EXTERNAL
6. Knight Ray E. , “The BKSTS Reference Leader Picture,” BKS&T J. , Sept. 1970 (reprinted in Jour. SMPTE, 79: 1095–1099, Dec. 1970). EXTERNAL
7. SMPTE Color Committee , Principles of Color Sensitometry , 2nd ed. , SMPTE , New York , 1963 . EXTERNAL
8. The Laboratory Aim Densities specified for 5253/7253 interpositives and duplicate negatives are also applicable to the new Eastman Color Intermediate-II film 5243/7243 introduced at the 118th SMPTE Technical Conference. EXTERNAL
Computerized Process and Printer Control — Part I: Color Positive Developing Control and Printer Tape Preparation EXTERNAL
A Method for Reporting Exposure on Motion-Picture Color Negatives EXTERNAL
Response Functions for Color Densitometry — A Reprint EXTERNAL
Computerized Process and Printer Control — Part II: Printer Control EXTERNAL
An On-Line Computerized Light Valve Monitor System EXTERNAL
Techniques in Color Duplication EXTERNAL
A New Photometer for Control of Color Printers EXTERNAL

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John P. Pytlak and Alfred W. Fleischer; A Simplified Motion-Picture Laboratory Control Method for Improved Color Duplication, ISSN: 0036-1682; SMPTE, 1976. Available at https://doi.org/10.5594/J07544

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John P. Pytlak and Alfred W. Fleischer; A Simplified Motion-Picture Laboratory Control Method for Improved Color Duplication, ISSN: 0036-1682; SMPTE, 1976. Available at https://doi.org/10.5594/J07544

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John P. Pytlak and Alfred W. Fleischer; A Simplified Motion-Picture Laboratory Control Method for Improved Color Duplication, ISSN: 0036-1682; SMPTE, 1976. Available at https://doi.org/10.5594/J07544

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<span class="citation">John P. Pytlak and Alfred W. Fleischer; <cite>A Simplified Motion-Picture Laboratory Control Method for Improved Color Duplication</cite>, ISSN: 0036-1682; SMPTE, 1976. Available at <a href="https://doi.org/10.5594/J07544" target="_blank" rel="noopener">https://doi.org/10.5594/J07544</a></span>

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John P. Pytlak and Alfred W. Fleischer; A Simplified Motion-Picture Laboratory Control Method for Improved Color Duplication, ISSN: 0036-1682; SMPTE, 1976
doi: 10.5594/J07544
url: https://doi.org/10.5594/J07544

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John P. Pytlak and Alfred W. Fleischer; <cite id="bib-10-5594-j07544">A Simplified Motion-Picture Laboratory Control Method for Improved Color Duplication</cite>, ISSN: 0036-1682; SMPTE, 1976
<span class="doi">10.5594/J07544</span>
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