GB1218639A - Photographic apparatus - Google Patents

Photographic apparatus

Info

Publication number
GB1218639A
GB1218639A GB52395/68A GB5239568A GB1218639A GB 1218639 A GB1218639 A GB 1218639A GB 52395/68 A GB52395/68 A GB 52395/68A GB 5239568 A GB5239568 A GB 5239568A GB 1218639 A GB1218639 A GB 1218639A
Authority
GB
United Kingdom
Prior art keywords
cell
camera
photo
flash
flash apparatus
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
Application number
GB52395/68A
Inventor
Kurt Langnau
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.)
Pentacon GmbH Foto und Feinwerktechnik
Original Assignee
Pentacon Dresden VEB
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 Pentacon Dresden VEB filed Critical Pentacon Dresden VEB
Priority to GB52395/68A priority Critical patent/GB1218639A/en
Publication of GB1218639A publication Critical patent/GB1218639A/en
Expired 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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • 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)
  • Automatic Focus Adjustment (AREA)

Abstract

1,218,639. Photographic flash apparatus. PENTACON DRESDEN KAMARA - UND KINOWERKE VEB. Nov. 5, 1968. No. 52395/68. Heading G1A. [Also in Division G2]. Photographic apparatus comprises the combination of a flash apparatus 1 having a photo-cell 4 associated with control device 3 for determining the duration of the flash from a lamp 2, and a camera 6 having a photo-cell 11 therein receiving light through the camera lens 7 and a semi reflecting mirror 9, each of the cells 4, 11 being connectable, via changeover switches 15, 16 and contacts 17, 18 respectively, with the device 3 for flash duration selection. When photographs are taken with the flash apparatus, plug contacts 5, 13 are inserted in the apparatus 1 and the camera 6, so as to connect the cell 11 with the device 3 and disconnect the cell 4 from circuit therewith. The cell 4 is provided with a removable filter 14 the transmittance of which corresponds to camera lens 7 and mirror 9. The cell 4 ensures that the control device 3 can be used independently of the camera 6, if desired. The arrangement provides for the use of the flash apparatus at a distance from the camera, but giving correct exposure of film in the camera. In a modification, (not shown), an electrical damping resistance is used connected in series with the photo-cell 4 for balancing out the difference in illumination between the use of directly illuminated photo-cell 4 of the flash apparatus, on the one hand, and the use of the photo-electric cell 11 mounted in the alternated path of the taking rays, on the other.
GB52395/68A 1968-11-05 1968-11-05 Photographic apparatus Expired GB1218639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB52395/68A GB1218639A (en) 1968-11-05 1968-11-05 Photographic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB52395/68A GB1218639A (en) 1968-11-05 1968-11-05 Photographic apparatus

Publications (1)

Publication Number Publication Date
GB1218639A true GB1218639A (en) 1971-01-06

Family

ID=10463764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52395/68A Expired GB1218639A (en) 1968-11-05 1968-11-05 Photographic apparatus

Country Status (1)

Country Link
GB (1) GB1218639A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121329A (en) * 1975-04-16 1976-10-23 Minolta Camera Co Ltd Automatic light control for close photography
JPS54102027U (en) * 1978-12-13 1979-07-18
JPS54106839U (en) * 1978-12-13 1979-07-27
US4497562A (en) * 1981-12-25 1985-02-05 Minolta Camera Kabushiki Kaisha Exposure control device for flash photography

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121329A (en) * 1975-04-16 1976-10-23 Minolta Camera Co Ltd Automatic light control for close photography
JPS54102027U (en) * 1978-12-13 1979-07-18
JPS54106839U (en) * 1978-12-13 1979-07-27
US4497562A (en) * 1981-12-25 1985-02-05 Minolta Camera Kabushiki Kaisha Exposure control device for flash photography

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