AU498429B2 - Photographic exposure control system - Google Patents
Photographic exposure control systemInfo
- Publication number
- AU498429B2 AU498429B2 AU70543/74A AU7054374A AU498429B2 AU 498429 B2 AU498429 B2 AU 498429B2 AU 70543/74 A AU70543/74 A AU 70543/74A AU 7054374 A AU7054374 A AU 7054374A AU 498429 B2 AU498429 B2 AU 498429B2
- Authority
- AU
- Australia
- Prior art keywords
- control system
- exposure control
- photographic exposure
- photographic
- exposure
- 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
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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/70—Exposure-making shutters; Diaphragms with flash-synchronising contacts
-
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Shutters For Cameras (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37651373A | 1973-07-05 | 1973-07-05 | |
USUS376513 | 1973-07-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU7054374A AU7054374A (en) | 1976-01-08 |
AU498429B2 true AU498429B2 (en) | 1979-03-15 |
Family
ID=23485320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU70543/74A Expired AU498429B2 (en) | 1973-07-05 | 1974-06-27 | Photographic exposure control system |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5724527B2 (en) |
AU (1) | AU498429B2 (en) |
CA (1) | CA1020790A (en) |
DE (1) | DE2432481C2 (en) |
FR (1) | FR2236203B1 (en) |
GB (1) | GB1450633A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3977014A (en) * | 1975-03-03 | 1976-08-24 | Polaroid Corporation | Follow focus exposure control system with improved uniform trim control |
US3972057A (en) * | 1975-03-03 | 1976-07-27 | Polaroid Corporation | Exposure control system with follow focus capability |
US3995295A (en) * | 1975-08-28 | 1976-11-30 | Polaroid Corporation | Electro-mechanical shutter system having mechanical latch |
US4104653A (en) * | 1977-05-31 | 1978-08-01 | Polaroid Corporation | Scanning shutter blade arrangement with ambient and flash ranges |
US4255030A (en) * | 1979-09-13 | 1981-03-10 | Polaroid Corporation | Camera with proportional fill flash quench strobe |
US4299461A (en) * | 1980-03-31 | 1981-11-10 | Polaroid Corporation | Exposure and flash fire control system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1290805U (en) * | ||||
DE1290805B (en) * | 1960-09-23 | 1969-03-13 | Leczkowski Kurt | Automatic exposure control for recordings with photographic cameras in mixed light |
DE1806487A1 (en) * | 1968-10-31 | 1970-05-14 | Agfa Gevaert Ag | Photographic camera |
GB1391292A (en) * | 1971-08-03 | 1975-04-23 | Polaroid Corp | Photographic exposure control systems |
-
1974
- 1974-06-10 GB GB2563174A patent/GB1450633A/en not_active Expired
- 1974-06-27 AU AU70543/74A patent/AU498429B2/en not_active Expired
- 1974-07-04 JP JP7591274A patent/JPS5724527B2/ja not_active Expired
- 1974-07-04 CA CA204,118A patent/CA1020790A/en not_active Expired
- 1974-07-04 DE DE2432481A patent/DE2432481C2/en not_active Expired
- 1974-07-04 FR FR7423241A patent/FR2236203B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5724527B2 (en) | 1982-05-25 |
FR2236203B1 (en) | 1979-08-03 |
GB1450633A (en) | 1976-09-22 |
AU7054374A (en) | 1976-01-08 |
CA1020790A (en) | 1977-11-15 |
DE2432481A1 (en) | 1975-01-23 |
FR2236203A1 (en) | 1975-01-31 |
DE2432481C2 (en) | 1986-04-30 |
JPS5034535A (en) | 1975-04-02 |
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