FR726513A - Method, films including application and devices for measuring the contrast factor (gamma) of films - Google Patents

Method, films including application and devices for measuring the contrast factor (gamma) of films

Info

Publication number
FR726513A
FR726513A FR726513DA FR726513A FR 726513 A FR726513 A FR 726513A FR 726513D A FR726513D A FR 726513DA FR 726513 A FR726513 A FR 726513A
Authority
FR
France
Prior art keywords
films
gamma
measuring
devices
including application
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR726513A publication Critical patent/FR726513A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/02—Sensitometric processes, e.g. determining sensitivity, colour sensitivity, gradation, graininess, density; Making sensitometric wedges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR726513D 1931-01-19 1931-01-19 Method, films including application and devices for measuring the contrast factor (gamma) of films Expired FR726513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR726513T 1931-01-19

Publications (1)

Publication Number Publication Date
FR726513A true FR726513A (en) 1932-05-30

Family

ID=9110730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR726513D Expired FR726513A (en) 1931-01-19 1931-01-19 Method, films including application and devices for measuring the contrast factor (gamma) of films

Country Status (1)

Country Link
FR (1) FR726513A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612447A (en) * 1947-01-13 1952-09-30 Raibourn Paul Photographic processing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612447A (en) * 1947-01-13 1952-09-30 Raibourn Paul Photographic processing

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