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Jos Schneider Optische Werke GmbH
Original Assignee
Jos Schneider Optische Werke GmbH
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Publication date
Application filed by Jos Schneider Optische Werke GmbHfiledCriticalJos Schneider Optische Werke GmbH
Priority to FR56007ApriorityCriticalpatent/FR1474420A/en
Application grantedgrantedCritical
Publication of FR1474420ApublicationCriticalpatent/FR1474420A/en
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)
FR56007A1966-04-011966-04-01
Photographic lens with automatic adjustment device for shots with flashlight
ExpiredFR1474420A
(en)