JPS55592A - Flash photographing system - Google Patents

Flash photographing system

Info

Publication number
JPS55592A
JPS55592A JP6591179A JP6591179A JPS55592A JP S55592 A JPS55592 A JP S55592A JP 6591179 A JP6591179 A JP 6591179A JP 6591179 A JP6591179 A JP 6591179A JP S55592 A JPS55592 A JP S55592A
Authority
JP
Japan
Prior art keywords
photographing
auto
flash
displayed
changed over
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
JP6591179A
Other languages
Japanese (ja)
Inventor
Takashi Uchiyama
Yukio Mashita
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 JP6591179A priority Critical patent/JPS55592A/en
Publication of JPS55592A publication Critical patent/JPS55592A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To prevent incorrect exposure owing to mis-operation from being done by letting the okay or not of auto-photographing be displayed.
CONSTITUTION: When a switch S0 is changed over to the A side and the terminal voltage of a light emitting capacitor C1 reaches the specified emittable voltage in the case of using a flash emitting device in combination with a camera provided with an arithmetic circuit and a variable resistor fitted to an interchangeable lens, then a neon tube N1 goes on, thus indicating that auto-photographing is feasible. The emission quantity information of the flash device is applied into the meter circuit and the meter M1 indicates swing angles, whereby the aperture value of the lens is adjusted and determined and when the shutter is pushed, correct flash photographing is accomplished in the auto mode. On the other hand, the normal camera is used, S0 is automatically changed over to the M side and the infeasibility of auto- photographing is displayed through flickering of a neon tube N2.
COPYRIGHT: (C)1980,JPO&Japio
JP6591179A 1979-05-28 1979-05-28 Flash photographing system Pending JPS55592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6591179A JPS55592A (en) 1979-05-28 1979-05-28 Flash photographing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6591179A JPS55592A (en) 1979-05-28 1979-05-28 Flash photographing system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP5752172A Division JPS4918030A (en) 1972-06-09 1972-06-09

Publications (1)

Publication Number Publication Date
JPS55592A true JPS55592A (en) 1980-01-05

Family

ID=13300614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6591179A Pending JPS55592A (en) 1979-05-28 1979-05-28 Flash photographing system

Country Status (1)

Country Link
JP (1) JPS55592A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987440A (en) * 1982-11-10 1984-05-21 West Electric Co Ltd Strobing device for automatic dimming
JPS6141820U (en) * 1985-07-05 1986-03-17 ヤマハ発動機株式会社 Check valve of secondary air supply device
JPS61174523A (en) * 1985-01-30 1986-08-06 Nippon Kogaku Kk <Nikon> Electronic flash device
JPS62115135A (en) * 1986-10-31 1987-05-26 Minolta Camera Co Ltd Flash photographing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987440A (en) * 1982-11-10 1984-05-21 West Electric Co Ltd Strobing device for automatic dimming
JPS61174523A (en) * 1985-01-30 1986-08-06 Nippon Kogaku Kk <Nikon> Electronic flash device
JPS6141820U (en) * 1985-07-05 1986-03-17 ヤマハ発動機株式会社 Check valve of secondary air supply device
JPS62115135A (en) * 1986-10-31 1987-05-26 Minolta Camera Co Ltd Flash photographing device

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