JPS5576337A - Aperture control unit permitting automatic fading photographing - Google Patents

Aperture control unit permitting automatic fading photographing

Info

Publication number
JPS5576337A
JPS5576337A JP14956378A JP14956378A JPS5576337A JP S5576337 A JPS5576337 A JP S5576337A JP 14956378 A JP14956378 A JP 14956378A JP 14956378 A JP14956378 A JP 14956378A JP S5576337 A JPS5576337 A JP S5576337A
Authority
JP
Japan
Prior art keywords
fade
time
photographing
control unit
specified time
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
JP14956378A
Other languages
Japanese (ja)
Other versions
JPS6243171B2 (en
Inventor
Nobuo Kobayashi
Hiroaki Tamura
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.)
Fujinon Corp
Nippon Seimitsu Kogyo KK
Original Assignee
Nippon Seimitsu Kogyo KK
Fuji Photo Optical Co Ltd
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 Nippon Seimitsu Kogyo KK, Fuji Photo Optical Co Ltd filed Critical Nippon Seimitsu Kogyo KK
Priority to JP14956378A priority Critical patent/JPS5576337A/en
Publication of JPS5576337A publication Critical patent/JPS5576337A/en
Publication of JPS6243171B2 publication Critical patent/JPS6243171B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain always a correct exposure value according to changing subject luminance and perform natural fading by changing the operating speed of an aperture member after the start of fade-in and out.
CONSTITUTION: When at the time of automatic fade-out an operating member is turned counterclockwise and mode-select switches SW1, SW2 are set in the automatic fade-out photographing positions, then an aperture member 10 moves to the close side at a low speed in the initial specified time and after lapse of the specified time it moves to the close side at a high speed. When at the time of fade-in the shutter release operation is performed after turning the operating member clockwise and setting SW1 and SW2 to the automatic fade-in position, then the member 10 operates to the specified step-under position at a high speed upon turning OFF of the fade-in start switch SW3, thence it operates to the open side at a low speed for the specified time.
COPYRIGHT: (C)1980,JPO&Japio
JP14956378A 1978-12-01 1978-12-01 Aperture control unit permitting automatic fading photographing Granted JPS5576337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14956378A JPS5576337A (en) 1978-12-01 1978-12-01 Aperture control unit permitting automatic fading photographing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14956378A JPS5576337A (en) 1978-12-01 1978-12-01 Aperture control unit permitting automatic fading photographing

Publications (2)

Publication Number Publication Date
JPS5576337A true JPS5576337A (en) 1980-06-09
JPS6243171B2 JPS6243171B2 (en) 1987-09-11

Family

ID=15477903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14956378A Granted JPS5576337A (en) 1978-12-01 1978-12-01 Aperture control unit permitting automatic fading photographing

Country Status (1)

Country Link
JP (1) JPS5576337A (en)

Also Published As

Publication number Publication date
JPS6243171B2 (en) 1987-09-11

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