JPH08313966A - Double shutter for lens interchangeable type camera - Google Patents

Double shutter for lens interchangeable type camera

Info

Publication number
JPH08313966A
JPH08313966A JP15212695A JP15212695A JPH08313966A JP H08313966 A JPH08313966 A JP H08313966A JP 15212695 A JP15212695 A JP 15212695A JP 15212695 A JP15212695 A JP 15212695A JP H08313966 A JPH08313966 A JP H08313966A
Authority
JP
Japan
Prior art keywords
shutter
lens
main body
closed
opened
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
JP15212695A
Other languages
Japanese (ja)
Inventor
Osami Ueda
修身 上田
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15212695A priority Critical patent/JPH08313966A/en
Publication of JPH08313966A publication Critical patent/JPH08313966A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shutters For Cameras (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Abstract

PURPOSE: To use the high-speed side (a short-time exposure) of a shutter, at the time of photographing with a stroboscope by adopting a double shutter constitution in a lens barrel and a camera main body. CONSTITUTION: A lens shutter 2 is provided in the lens barrel 1 and further a main body shutter 4 is provided in the camera main body 3 as well. In this case, as the lens shutter 2, the shutter served also as a diaphragm which is the same type as the shutter used for a lens noninterchangeable camera is used. The main body shutter 4 is the same type as a conventional focal plane shutter and closed except photographing. As an operation for short-time exposure photographing in synchronization with the stroboscope, first the main body shutter 4 is opened after the lens shutter 2 is closed and then, the lens shutter 2 is opened up to the set value of the diaphragm. After a set time lapses, the lens shutter 2 is closed and then, the main body shutter 4 is closed. After that, the lens shutter 2 is opened.

Description

【発明の詳細な説明】 この発明は、レンズ交換型カメラ用二重シャッターに関
するものである。従来のレンズ交換型カメラ（一眼レ
フ）ではストロボ使用時にシャッターの高速側（短時間
露光）が使用できなかった。理由は、フォーカルプレー
ンシャッターで短時間露光させた時、ストロボの短い発
光時間内ではシャッターが全開にならない為、フィルム
全面を均一に露光させることができなかったからであ
る。本発明は、その欠点を除く為のもので、これを図面
で説明すれば、（１）のレンズ鏡胴内に（２）のレンズ
シャッターを設け、さらに（３）のカメラ本体内にも
（４）の本体シャッターを設けたものである。（２）の
レンズシャッターは、非レンズ交換型カメラに使用され
ているものと同様に、絞り兼用型とし、撮影時以外は開
いているものとする。（４）の本体シャッターは、従来
のフォーカルプレーンシャッターと同様のものとし、撮
影時以外は閉じているものとする。ストロボ同調で短時
間露光撮影時の動作は、まず（２）のレンズシャッター
を閉じたあと、（４）の本体シャッターを開き、続いて
（２）のレンズシャッターを絞りの設定値まで開き、設
定時間経過後に（２）のレンズシャッターを閉じ、続い
て（４）の本体シャッターを閉じた後、（２）のレンズ
シャッターを開く事になる。それ以外の撮影時の動作
は、従来と同様、（２）のレンズシャッターを絞りの設
定値まで閉じた後で（４）の本体シャッターを開き、設
定時間経過後に（４）の本体シャッターを閉じ、続いて
（２）のレンズシャッターを開くだけでよい。Description: TECHNICAL FIELD The present invention relates to a double shutter for an interchangeable lens type camera. In conventional lens interchangeable cameras (single-lens reflex cameras), the high-speed side (short-time exposure) of the shutter could not be used when using a flash. The reason is that when the focal plane shutter is exposed for a short period of time, the shutter cannot be fully opened within a short flash emission time, so that the entire surface of the film cannot be uniformly exposed. The present invention is intended to eliminate the drawback, and it will be described with reference to the drawings. If the lens shutter of (2) is provided in the lens barrel of (1), and (3) in the camera body, The main body shutter of 4) is provided. The lens shutter of (2) is a type that also serves as an aperture, like the one used in a non-lens interchangeable type camera, and is open except when photographing. The body shutter of (4) is the same as the conventional focal plane shutter, and is closed except when photographing. For short-time exposure shooting with flash synchronization, first close the lens shutter in (2), then open the main unit shutter in (4), and then open the lens shutter in (2) up to the aperture setting value. After a lapse of time, the lens shutter of (2) is closed, then the main body shutter of (4) is closed, and then the lens shutter of (2) is opened. Other than the above, when shooting, as in the past, the lens shutter in (2) was closed to the aperture setting value, the main shutter in (4) was opened, and the main shutter in (4) was closed after the set time had elapsed. Then, just open the lens shutter of (2).

【図面の簡単な説明】[Brief description of drawings]

【図１】 本発明の断面図である。1 is a cross-sectional view of the present invention.

【符号の説明】[Explanation of symbols]

（１）はレンズ鏡胴 （２）はレンズシャッター （３）はカメラ本体 （４）は本体シャッター （５）はレンズ （６）はフィルム (1) is a lens barrel (2) is a lens shutter (3) is a camera body (4) is a body shutter (5) is a lens (6) is a film

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 レンズ鏡胴内とカメラ本体内と
の二重シャッター1. A double shutter in the lens barrel and in the camera body.
JP15212695A 1995-05-15 1995-05-15 Double shutter for lens interchangeable type camera Pending JPH08313966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15212695A JPH08313966A (en) 1995-05-15 1995-05-15 Double shutter for lens interchangeable type camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15212695A JPH08313966A (en) 1995-05-15 1995-05-15 Double shutter for lens interchangeable type camera

Publications (1)

Publication Number Publication Date
JPH08313966A true JPH08313966A (en) 1996-11-29

Family

ID=15533636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15212695A Pending JPH08313966A (en) 1995-05-15 1995-05-15 Double shutter for lens interchangeable type camera

Country Status (1)

Country Link
JP (1) JPH08313966A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112470072A (en) * 2020-01-20 2021-03-09 深圳市大疆创新科技有限公司 Switching device, camera, switching lens and camera assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112470072A (en) * 2020-01-20 2021-03-09 深圳市大疆创新科技有限公司 Switching device, camera, switching lens and camera assembly

Similar Documents

Publication Publication Date Title
JPH095817A (en) Film unit with lens
JPS5221036A (en) Lens mount mechanism of a lens-shutter single-lens reflex camera
JPH08313966A (en) Double shutter for lens interchangeable type camera
JPH11271838A (en) Multiple exposure camera
JP3695745B2 (en) Shutter device and camera using the same
JPH0394241A (en) Camera of film integral type
JPH08171118A (en) Camera with built-in stroboscope
JP2003161979A (en) Shutter device and camera using the same
JPH01316726A (en) Camera system
JPH08278526A (en) Camera with built-in stroboscope
JPS609777Y2 (en) surveillance camera
JPS57154227A (en) Driving device for photometric mirror of single lens reflex camera
JP2001209107A (en) Method for realizing photographing allowable range at viewing through camera finder even in the dark
JPS6259941A (en) Still camera
JPS5677834A (en) Data back of camera
JP2006276227A (en) Film with lens
JP2667989B2 (en) Camera system
JPS5342027A (en) Single lens reflex camera of ttl photometry with electric self-timer
JPH0316139U (en)
JPH11202388A (en) Film unit with lens incorporating stroboscope
JPS5667827A (en) Date photographing device of single-lens reflex camera
JPH06194718A (en) Camera and converter lens device
JPS55134821A (en) Automatic exposure control camera
GB559140A (en) A photographic camera having an improved view finder system
JPS56156823A (en) Automatic photographing device