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JPS5522786A - Flashing device - Google Patents

Flashing device

Info

Publication number
JPS5522786A
JPS5522786A JP7652679A JP7652679A JPS5522786A JP S5522786 A JPS5522786 A JP S5522786A JP 7652679 A JP7652679 A JP 7652679A JP 7652679 A JP7652679 A JP 7652679A JP S5522786 A JPS5522786 A JP S5522786A
Authority
JP
Japan
Prior art keywords
flash
exposure
mode
luminance
occurrence
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.)
Granted
Application number
JP7652679A
Other languages
Japanese (ja)
Other versions
JPS5611133B2 (en
Inventor
Takashi Uchiyama
Yukio Mashita
Zenzo Nakamura
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP7652679A priority Critical patent/JPS5522786A/en
Publication of JPS5522786A publication Critical patent/JPS5522786A/en
Publication of JPS5611133B2 publication Critical patent/JPS5611133B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

PURPOSE: To obtain correct exposure even at the flash photography and prevent the occurrence of hand blur by changing over the camera to the mode for flash by the detection signal of the light emittable state.
CONSTITUTION: A circuit Ct which detests the light emittable stateupon completion of charging, etc. to the main capacitor Cm of a flashing device F is provided and the detection output thereof is sent out to the camera C via external termainals Af, Bf of the device F so that the exposure control mode on the camra C side is changed over from the exposure control by luminance to the mode for flash in which the exposure value is set for flash irrespective of luminance. Hence, even if release operation is performed before the preparation for flash emission is over, correct exposure may be obtained and the occurrence of hand blue or the like may be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP7652679A 1979-06-18 1979-06-18 Flashing device Granted JPS5522786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7652679A JPS5522786A (en) 1979-06-18 1979-06-18 Flashing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7652679A JPS5522786A (en) 1979-06-18 1979-06-18 Flashing device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP3764574A Division JPS5610610B2 (en) 1974-04-03 1974-04-03

Publications (2)

Publication Number Publication Date
JPS5522786A true JPS5522786A (en) 1980-02-18
JPS5611133B2 JPS5611133B2 (en) 1981-03-12

Family

ID=13607720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7652679A Granted JPS5522786A (en) 1979-06-18 1979-06-18 Flashing device

Country Status (1)

Country Link
JP (1) JPS5522786A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643564A (en) * 1968-10-28 1972-02-22 Canon Kk Indicator for flashlight photography
JPS4915430A (en) * 1972-05-19 1974-02-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643564A (en) * 1968-10-28 1972-02-22 Canon Kk Indicator for flashlight photography
JPS4915430A (en) * 1972-05-19 1974-02-09

Also Published As

Publication number Publication date
JPS5611133B2 (en) 1981-03-12

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