JPS5888221U - Shutter closing operation control method during flash photography - Google Patents
Shutter closing operation control method during flash photographyInfo
- Publication number
- JPS5888221U JPS5888221U JP1982140946U JP14094682U JPS5888221U JP S5888221 U JPS5888221 U JP S5888221U JP 1982140946 U JP1982140946 U JP 1982140946U JP 14094682 U JP14094682 U JP 14094682U JP S5888221 U JPS5888221 U JP S5888221U
- Authority
- JP
- Japan
- Prior art keywords
- photography
- flash photography
- control method
- operation control
- closing operation
- 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
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に適用する一眼レフカメラの全体構成図
、第２図は第１図示カメラに用いる電気制御回路ブロッ
ク図、第３図は第２図の電気制御回路ブロック図に閃光
装置の発光による誤動作を防止する回路を付加して示す
電気制御回路ブロック図である。
Ｂ６・・・・・・フリップフロップ回路、Ａ□・・・・
・・演算増巾器、Ｄｌ・・・・・・対数圧縮用ダイオー
ド、Ｒ２，Ｒ３・・・・・・分圧用抵抗器、ＶＲＡ、
Ｒ，・・・・・・バイアス量可変用半固定抵抗器、Ａ２
・・・・・・測光回路用演算増巾器、Ｄ２・・・・・・
対数圧縮用ダイオード。
−−
Ｊｌｌ’
叩Ｎ ”１Fig. 1 is an overall configuration diagram of a single-lens reflex camera applied to the present invention, Fig. 2 is a block diagram of an electric control circuit used in the camera shown in Fig. 1, and Fig. 3 is a block diagram of an electric control circuit used in the camera shown in Fig. 2. FIG. 2 is a block diagram of an electric control circuit that includes an additional circuit for preventing malfunctions caused by light emission. B6...Flip-flop circuit, A□...
... Arithmetic amplifier, Dl ... Logarithmic compression diode, R2, R3 ... Voltage dividing resistor, VRA,
R, ... Semi-fixed resistor for variable bias amount, A2
......Arithmetic amplifier for photometry circuit, D2...
Diode for logarithmic compression. -- Jll' Hit N ”1
Claims (1)
時制御回路を自然光撮影用から閃光撮影用に切換えると
共にこの閃光撮影用へのシャッター秒時制御回路の切換
を保持する保持回路を設け、該保持回路による前記の切
換保持を撮影終了に関連する信号に応答して解除させ、
自然光撮影用へのシャッター秒時制御回路の切換復帰を
行うことを特徴とする閃光撮影装置。A holding circuit is provided which switches the shutter time control circuit from natural light photography to flash photography in response to a photography ready signal from the flash device, and maintains the switching of the shutter time control circuit from natural light photography to flash photography. releasing the switching holding by the holding circuit in response to a signal related to the end of shooting;
A flash photography device characterized in that a shutter time control circuit is switched back to natural light photography.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982140946U JPS5888221U (en) | 1982-09-16 | 1982-09-16 | Shutter closing operation control method during flash photography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982140946U JPS5888221U (en) | 1982-09-16 | 1982-09-16 | Shutter closing operation control method during flash photography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5888221U true JPS5888221U (en) | 1983-06-15 |
Family
ID=29934083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982140946U Pending JPS5888221U (en) | 1982-09-16 | 1982-09-16 | Shutter closing operation control method during flash photography |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5888221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63170831U (en) * | 1986-12-23 | 1988-11-07 |
-
1982
- 1982-09-16 JP JP1982140946U patent/JPS5888221U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63170831U (en) * | 1986-12-23 | 1988-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58126435U (en) | Aperture control circuit for TTL auto strobe | |
| JPS5888221U (en) | Shutter closing operation control method during flash photography | |
| JPS59134141U (en) | Camera notification device | |
| JPS59136622U (en) | camera | |
| JPS5935927U (en) | Photography equipment | |
| JPS5987025U (en) | Manual memory switch device for internal metering electronic shutter | |
| JPS591037U (en) | Electronic self-timer operation indicator | |
| JPS58159519U (en) | Automatic exposure control camera with electromagnetic activation device | |
| JPS6035681U (en) | Video camera mount conversion adapter | |
| JPS5935920U (en) | Shutter time limiter | |
| JPS5984961U (en) | Video camera | |
| JPH01130122U (en) | ||
| JPS6096640U (en) | Constant-emission strobe device | |
| JPS59192126U (en) | Flash device illumination angle control device | |
| JPS58123427U (en) | Camera suitable for flash photography | |
| JPS59183633U (en) | Photometric circuit | |
| JPS6041931U (en) | Aperture priority auto exposure camera | |
| JPS58108436U (en) | camera | |
| JPS5973725U (en) | Camera with self-timer | |
| JPS58108443U (en) | flash photography device | |
| JPS59186835U (en) | Camera exposure confirmation device | |
| JPS58141222U (en) | Camera flash photography control device | |
| JPS5935925U (en) | flash photography device | |
| JPS5888225U (en) | Photometric circuit of flash device | |
| JPS58118426U (en) | flash device |