CA948466A - Contrast control in photographic process - Google Patents

Contrast control in photographic process

Info

Publication number
CA948466A
CA948466A CA110,115A CA110115A CA948466A CA 948466 A CA948466 A CA 948466A CA 110115 A CA110115 A CA 110115A CA 948466 A CA948466 A CA 948466A
Authority
CA
Canada
Prior art keywords
photographic process
contrast control
contrast
photographic
control
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
CA110,115A
Other languages
English (en)
Inventor
Ehrhard Hellmig
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Application granted granted Critical
Publication of CA948466A publication Critical patent/CA948466A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F3/00—Colour separation; Correction of tonal value
    • G03F3/10—Checking the colour or tonal value of separation negatives or positives
    • G03F3/101—Colour or tonal value checking by non-photographic means or by means other than using non-impact printing methods or duplicating or marking methods covered by B41M5/00
    • 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)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
CA110,115A 1970-04-18 1971-04-13 Contrast control in photographic process Expired CA948466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702018735 DE2018735A1 (de) 1970-04-18 1970-04-18 Verfahren zur Herstellung von negativen Halbtonbildern

Publications (1)

Publication Number Publication Date
CA948466A true CA948466A (en) 1974-06-04

Family

ID=5768472

Family Applications (1)

Application Number Title Priority Date Filing Date
CA110,115A Expired CA948466A (en) 1970-04-18 1971-04-13 Contrast control in photographic process

Country Status (6)

Country Link
BE (1) BE765826A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA948466A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH571236A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2018735A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2089809A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1350270A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
CH571236A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-12-31
FR2089809A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-01-07
BE765826A (nl) 1971-10-18
GB1350270A (en) 1974-04-18
DE2018735A1 (de) 1971-10-28

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