JPS561940A - Photographing method - Google Patents
Photographing methodInfo
- Publication number
- JPS561940A JPS561940A JP7836579A JP7836579A JPS561940A JP S561940 A JPS561940 A JP S561940A JP 7836579 A JP7836579 A JP 7836579A JP 7836579 A JP7836579 A JP 7836579A JP S561940 A JPS561940 A JP S561940A
- Authority
- JP
- Japan
- Prior art keywords
- aperture
- image
- lens
- gradation image
- original
- 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.)
- Pending
Links
Landscapes
- Projection-Type Copiers In General (AREA)
Abstract
PURPOSE: To prepare easily a continuous gradation image from a discontinuous gradation image consisting of dots or the like as an original using camera work, by stopping down the aperture of a photographing lens extremely, and exposing the camera using a specified aperture.
CONSTITUTION: The photographing lens of a camera is focused on a discontinuous gradation image to be used as an original, then the aperture of the lens is stoppd down until the discontinuous gradation of the image is deteriorated in focus and becomes the cntinuous gradation state. Aperture 1 with effective opening size D' as same as or smaller than that of that aperture and with only an opening area enlarged is provided through light shielding plate 2, which is situated in front of the lens, and a photosensitive material is exposed to an image from the original, thus permitting the discontinuous gradation image to be converted into the continuous gradation image easily in a short time by camera work without using a special lens or an expensive apparatus.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7836579A JPS561940A (en) | 1979-06-21 | 1979-06-21 | Photographing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7836579A JPS561940A (en) | 1979-06-21 | 1979-06-21 | Photographing method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS561940A true JPS561940A (en) | 1981-01-10 |
Family
ID=13659969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7836579A Pending JPS561940A (en) | 1979-06-21 | 1979-06-21 | Photographing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS561940A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01302258A (en) * | 1987-05-28 | 1989-12-06 | Fuji Color Service:Kk | Method for forming secondary photographic original for printing |
-
1979
- 1979-06-21 JP JP7836579A patent/JPS561940A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01302258A (en) * | 1987-05-28 | 1989-12-06 | Fuji Color Service:Kk | Method for forming secondary photographic original for printing |
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