CA948465A - Contrast control in photographic process - Google Patents

Contrast control in photographic process

Info

Publication number
CA948465A
CA948465A CA110,114A CA110114A CA948465A CA 948465 A CA948465 A CA 948465A CA 110114 A CA110114 A CA 110114A CA 948465 A CA948465 A CA 948465A
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
CA110,114A
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 CA948465A publication Critical patent/CA948465A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
CA110,114A 1970-04-18 1971-04-13 Contrast control in photographic process Expired CA948465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702018734 DE2018734A1 (de) 1970-04-18 1970-04-18 Photographisches Verfahren

Publications (1)

Publication Number Publication Date
CA948465A true CA948465A (en) 1974-06-04

Family

ID=5768471

Family Applications (1)

Application Number Title Priority Date Filing Date
CA110,114A Expired CA948465A (en) 1970-04-18 1971-04-13 Contrast control in photographic process

Country Status (7)

Country Link
US (1) US3745008A (de)
BE (1) BE765825A (de)
CA (1) CA948465A (de)
CH (2) CH556043A (de)
DE (1) DE2018734A1 (de)
FR (1) FR2089808A5 (de)
GB (1) GB1340606A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977872A (en) * 1970-04-18 1976-08-31 Agfa-Gevaert, A.G. Process for the production of negative continuous-tone images
US3992210A (en) * 1973-06-05 1976-11-16 E. I. Du Pont De Nemours And Company Silver halide films with controlled gradient balance
CN101788792B (zh) * 2009-01-23 2012-09-19 财团法人工业技术研究院 需量限定值计算方法、需量控制方法及其系统
EP3560486A1 (de) 2011-12-14 2019-10-30 Abraxis BioScience, LLC Verwendung von polymeren hilfsstoffen zum gefriertrocknen oder gefrieren von partikeln

Also Published As

Publication number Publication date
CH562459A5 (de) 1975-05-30
DE2018734A1 (de) 1971-10-28
CH556043A (de) 1974-11-15
GB1340606A (en) 1973-12-12
US3745008A (en) 1973-07-10
BE765825A (nl) 1971-10-18
FR2089808A5 (de) 1972-01-07

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