JPS5522785A - Attachment for automatic changeover of shutter second time of camera - Google Patents

Attachment for automatic changeover of shutter second time of camera

Info

Publication number
JPS5522785A
JPS5522785A JP7652579A JP7652579A JPS5522785A JP S5522785 A JPS5522785 A JP S5522785A JP 7652579 A JP7652579 A JP 7652579A JP 7652579 A JP7652579 A JP 7652579A JP S5522785 A JPS5522785 A JP S5522785A
Authority
JP
Japan
Prior art keywords
time
shutter
flash photography
camera
attachment
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.)
Pending
Application number
JP7652579A
Other languages
Japanese (ja)
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 JP7652579A priority Critical patent/JPS5522785A/en
Publication of JPS5522785A publication Critical patent/JPS5522785A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE: To make possible always correct flash photography by fixing the shutter second time at the specified second time for flashing by the signal at the flash photography preparation over time.
CONSTITUTION: The connection terminals Af, Bf which output the electric signal generated when the charging of the main capacitor Cm or the like of the flashing device is completed and the flash emission state is reached is provided to the attachment f for flash photography and the external terminals Ac, Bc connecting to the terminals Af, Bf are provided to the camera. In response to the electric signal being inputted through the terminas Ac, Bc are fixed at the second time for the specified flash photography from the shutter second time adjusting state based on the subject light or the preset shutter second time value and is changed over to the state of adjusting the shutter second time by changeover circuits Q1 thru Q3.
COPYRIGHT: (C)1980,JPO&Japio
JP7652579A 1979-06-18 1979-06-18 Attachment for automatic changeover of shutter second time of camera Pending JPS5522785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7652579A JPS5522785A (en) 1979-06-18 1979-06-18 Attachment for automatic changeover of shutter second time of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7652579A JPS5522785A (en) 1979-06-18 1979-06-18 Attachment for automatic changeover of shutter second time of camera

Related Parent Applications (1)

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

Publications (1)

Publication Number Publication Date
JPS5522785A true JPS5522785A (en) 1980-02-18

Family

ID=13607692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7652579A Pending JPS5522785A (en) 1979-06-18 1979-06-18 Attachment for automatic changeover of shutter second time of camera

Country Status (1)

Country Link
JP (1) JPS5522785A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592023A (en) * 1982-06-28 1984-01-07 Olympus Optical Co Ltd Camera

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592023A (en) * 1982-06-28 1984-01-07 Olympus Optical Co Ltd Camera
JPH0477297B2 (en) * 1982-06-28 1992-12-08 Olympus Optical Co

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