IT952725B - Perfezionamento nelle disposizioni di controllo della esposizione per macchine fotografiche reflex monoculari - Google Patents

Perfezionamento nelle disposizioni di controllo della esposizione per macchine fotografiche reflex monoculari

Info

Publication number
IT952725B
IT952725B IT49756/72A IT4975672A IT952725B IT 952725 B IT952725 B IT 952725B IT 49756/72 A IT49756/72 A IT 49756/72A IT 4975672 A IT4975672 A IT 4975672A IT 952725 B IT952725 B IT 952725B
Authority
IT
Italy
Prior art keywords
improvement
exposure control
reflex camera
control arrangements
monocular reflex
Prior art date
Application number
IT49756/72A
Other languages
English (en)
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of IT952725B publication Critical patent/IT952725B/it

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
    • 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
IT49756/72A 1971-04-19 1972-04-19 Perfezionamento nelle disposizioni di controllo della esposizione per macchine fotografiche reflex monoculari IT952725B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13521171A 1971-04-19 1971-04-19

Publications (1)

Publication Number Publication Date
IT952725B true IT952725B (it) 1973-07-30

Family

ID=22467043

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49756/72A IT952725B (it) 1971-04-19 1972-04-19 Perfezionamento nelle disposizioni di controllo della esposizione per macchine fotografiche reflex monoculari

Country Status (8)

Country Link
US (1) US3750543A (it)
JP (1) JPS5618933B1 (it)
CA (1) CA997191A (it)
DE (1) DE2219021C3 (it)
FR (1) FR2144217A5 (it)
GB (1) GB1371995A (it)
IT (1) IT952725B (it)
NL (1) NL182587C (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838433A (en) * 1969-07-15 1974-09-24 Minolta Camera Kk Electric shutter for a camera
JPS5327931B2 (it) * 1972-09-16 1978-08-11
DE2352076C3 (de) * 1973-10-17 1978-08-31 Kodak Ag, 7000 Stuttgart Photographische Kamera mit mehreren wahlweise verwendbaren Objektiven und einem Blendenverschluß
US3945025A (en) * 1973-11-12 1976-03-16 Polaroid Corporation Exposure control system
GB1508452A (en) * 1974-04-18 1978-04-26 West Electric Co Optical control systems
US3864700A (en) * 1974-05-20 1975-02-04 Rollei Werke Franke Heidecke Diaphragm adjusting mechanism for photographic cameras
US3942183A (en) * 1974-07-02 1976-03-02 Polaroid Corporation Camera with pivoting blades
JPS5847688B2 (ja) * 1974-10-18 1983-10-24 ウエストデンキ カブシキガイシヤ 露出制御装置
US3950766A (en) * 1974-11-22 1976-04-13 Polaroid Corporation Exposure control system employing blade sensing follow focus arrangement
US3977014A (en) * 1975-03-03 1976-08-24 Polaroid Corporation Follow focus exposure control system with improved uniform trim control
JPS5293323A (en) * 1976-01-31 1977-08-05 Fuji Photo Film Co Ltd Electromagnetic shutter
US4008481A (en) * 1975-10-03 1977-02-15 Polaroid Corporation Exposure control system with separate flash and ambient trigger levels
US4017873A (en) * 1975-10-03 1977-04-12 Polaroid Corporation Exposure control system with braking capability
US4023187A (en) * 1975-10-03 1977-05-10 Polaroid Corporation Exposure control system with fill flash race condition
US4104653A (en) * 1977-05-31 1978-08-01 Polaroid Corporation Scanning shutter blade arrangement with ambient and flash ranges
US4185144A (en) * 1978-09-05 1980-01-22 Polaroid Corporation Electrochemical cell with a cadmium patch electrode
US4209243A (en) * 1978-12-01 1980-06-24 Polaroid Corporation Shutter and trim apparatus
US4338011A (en) * 1981-03-03 1982-07-06 Polaroid Corporation Photographic camera apparatus
US4312582A (en) * 1981-03-03 1982-01-26 Polaroid Corporation Exposure control and focusing apparatus for use in a photographic camera

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326103A (en) * 1964-12-09 1967-06-20 Polaroid Corp Auxiliary shutter timing mechanism
US3605588A (en) * 1968-06-25 1971-09-20 Eastman Kodak Co Photographic camera with electronically controlled lens diapharagm
US3641889A (en) * 1970-09-02 1972-02-15 Polaroid Corp Exposure control system

Also Published As

Publication number Publication date
NL182587C (nl) 1988-04-05
CA997191A (en) 1976-09-21
DE2219021C3 (de) 1980-01-24
DE2219021A1 (de) 1972-10-26
GB1371995A (en) 1974-10-30
US3750543A (en) 1973-08-07
NL7205182A (it) 1972-10-23
FR2144217A5 (it) 1973-02-09
JPS5618933B1 (it) 1981-05-02
NL182587B (nl) 1987-11-02
DE2219021B2 (de) 1978-10-19

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