JPS56156824A - Control method for ouantity of exposure light for printing-out of photograph - Google Patents

Control method for ouantity of exposure light for printing-out of photograph

Info

Publication number
JPS56156824A
JPS56156824A JP6036180A JP6036180A JPS56156824A JP S56156824 A JPS56156824 A JP S56156824A JP 6036180 A JP6036180 A JP 6036180A JP 6036180 A JP6036180 A JP 6036180A JP S56156824 A JPS56156824 A JP S56156824A
Authority
JP
Japan
Prior art keywords
negative
exposure light
screen
printing
ouantity
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.)
Granted
Application number
JP6036180A
Other languages
Japanese (ja)
Other versions
JPH0450570B2 (en
Inventor
Takaaki Terashita
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP6036180A priority Critical patent/JPS56156824A/en
Publication of JPS56156824A publication Critical patent/JPS56156824A/en
Publication of JPH0450570B2 publication Critical patent/JPH0450570B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)

Abstract

PURPOSE:To make optimum printing-out possible in different seasons, by dividing the negative screen to measure lights and by preparing and selecting plural operation expressions when these measure values are operated to determine an optimum quantity of exposure light. CONSTITUTION:Densities of respective parts of the negative screen are measured, and the negative is classified by patterns on a basis of characteristic values of them. For example, if the upper part of the screen has a density higher than that of the lower part, this negative is classified as a backlighted shot negative. However, since the contrast is different between snow and the sea in the background, it is desirable that the calculation expression for the quantity of exposure light is changed even for the same backlighted shot negatives. Therefore, operation systems A and B are prepared, and the former is selected and used in the winter, and the latter is selected and used in the seasons other than the winter.
JP6036180A 1980-05-07 1980-05-07 Control method for ouantity of exposure light for printing-out of photograph Granted JPS56156824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6036180A JPS56156824A (en) 1980-05-07 1980-05-07 Control method for ouantity of exposure light for printing-out of photograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6036180A JPS56156824A (en) 1980-05-07 1980-05-07 Control method for ouantity of exposure light for printing-out of photograph

Publications (2)

Publication Number Publication Date
JPS56156824A true JPS56156824A (en) 1981-12-03
JPH0450570B2 JPH0450570B2 (en) 1992-08-14

Family

ID=13139920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6036180A Granted JPS56156824A (en) 1980-05-07 1980-05-07 Control method for ouantity of exposure light for printing-out of photograph

Country Status (1)

Country Link
JP (1) JPS56156824A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987448A (en) * 1982-11-11 1984-05-21 Fuji Photo Film Co Ltd Testing method of color film
JPS59164547A (en) * 1983-03-09 1984-09-17 Fuji Photo Film Co Ltd Determining method of amount of photographic printing and exposure
JPS613133A (en) * 1984-06-15 1986-01-09 Fuji Photo Film Co Ltd Photograph printing machine and its printing exposure quantity determining method
JPS6123140A (en) * 1984-07-12 1986-01-31 Fuji Xerox Co Ltd Controller of exposure lamp
JPS6380244A (en) * 1987-08-26 1988-04-11 Fuji Photo Film Co Ltd Photograph printing machine
JPS6380242A (en) * 1987-08-26 1988-04-11 Fuji Photo Film Co Ltd Photograph printing machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987448A (en) * 1982-11-11 1984-05-21 Fuji Photo Film Co Ltd Testing method of color film
JPH0437978B2 (en) * 1982-11-11 1992-06-23 Fuji Photo Film Co Ltd
JPS59164547A (en) * 1983-03-09 1984-09-17 Fuji Photo Film Co Ltd Determining method of amount of photographic printing and exposure
JPS613133A (en) * 1984-06-15 1986-01-09 Fuji Photo Film Co Ltd Photograph printing machine and its printing exposure quantity determining method
JPH0446415B2 (en) * 1984-06-15 1992-07-29 Fuji Photo Film Co Ltd
JPS6123140A (en) * 1984-07-12 1986-01-31 Fuji Xerox Co Ltd Controller of exposure lamp
JPS6380244A (en) * 1987-08-26 1988-04-11 Fuji Photo Film Co Ltd Photograph printing machine
JPS6380242A (en) * 1987-08-26 1988-04-11 Fuji Photo Film Co Ltd Photograph printing machine
JPH0512694B2 (en) * 1987-08-26 1993-02-18 Fuji Photo Film Co Ltd

Also Published As

Publication number Publication date
JPH0450570B2 (en) 1992-08-14

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