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 photographInfo
- 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
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.
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)
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 |
-
1980
- 1980-05-07 JP JP6036180A patent/JPS56156824A/en active Granted
Cited By (9)
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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