Claims
- 1. An information setting apparatus for a camera having a plurality of photographing modes including an aperture priority automatic mode and a shutter speed priority automatic mode, comprising:
- (a) a first operation member for selection of said modes;
- (b) a second operation member provided so as to change a preset value in a selected mode; and
- (c) a circuit coupled to said second operation member so as to provide a signal corresponding to a preset value, said circuit changing the signal in response to the operation of said second operation member, and said circuit changing the signal corresponding to the preset value changed by said second operation member to a specific signal representing a preset value normally used in a selected mode in response to the selection operation by said first operation member.
- 2. An apparatus according to claim 1, wherein said circuit includes a counter provided so as to change its content in response to operation of the second operation member, said counter providing a signal corresponding to its content as a preset value.
- 3. An apparatus according to claim 2, wherein the content of said counter is set to a specific value by operation of said first operation member.
- 4. An apparatus according to claim 1, and further comprising means for forming a signal in response to operation of said first operation member so that said circuit changes the signal to a specific value in response to the signal from said signal forming means.
Priority Claims (1)
| Number |
Date |
Country |
Kind |
| 59-2482 |
Feb 1984 |
JPX |
|
BACKGROUND OF THE INVENTION
This is a continuation of application Ser. No. 875,502, filed June 18, 1986, which is a continuation of Ser. No. 700,679, filed Dec. 12, 1985, now abandoned.
1. Field of the Invention
The present invention relates to an information setting apparatus for a camera.
2. Description of the Prior Art
Quite recently, in order to set the photographing information a device has been proposed, in which a switch is operatively associated with the depression of a button for rotating a dial so as to be opened and closed in such a manner that pulses are produced with the closing and the opening operation of the switch and counted by a counter so as to set the information. However, the camera having such an information setting apparatus and been capable of taking multi-mode photography (for example, the shutter or the aperture priority) has the following shortcomings. Suppose that after a shutter time 1/1000 sec. has been set in the shutter priority mode, the mode is changed over into the aperture priority mode, and the digital value representing the above 1/1000 sec. (the value set in the counter by the above switch)corresponds to a digital value representing a fully open aperture value (for example, F 1.2) as the aperture value. Then, F 1.2 is set as the set information by the above mode change over. Thus, in case where it is desired to set F 5.6 in the aperture priority mode, it is necessary to change the set value, which is inconvenient for the operation.
On the other hand, when the photography in the aperture priority mode, F 5.6 is mostly used as the normal aperture value so that in the aperture priority mode it is desired that the above normal value is automatically set when the mode is changed over, regardless of the shutter time set in the shutter time priority mode.
Further, U.S. Pat. No. 4,191,458 discloses an apparatus in which the set information is automatically set, for example, 1/125 sec. in the shutter priority mode and F 8 or the like is set in the aperture priority mode when the power source is switched on. However, even in the case of this apparatus only the normal value is set when the power source is switched on, whereby when the photographing mode is changed over after the power source has been switched on, the value is not changed into the normal value automatically in the selected photographing mode so that the above problem cannot be solved.
It is, accordingly, an object of the present invention to provide an apparatus which sets the photographing information automatically at the normal value in the selected photographing mode in operative association with the change over of the photographing mode.
It is another object of the present invention to provide an apparatus which automatically selects a specific photographing mode in a camera having a plurality of photographing modes when the power source is switched on.
Further objects and features of the present invention will become apparent from the description to be made below with reference to the accompanying drawings of the embodiment of the present invention:
US Referenced Citations (6)
Continuations (2)
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Number |
Date |
Country |
| Parent |
875502 |
Jun 1986 |
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| Parent |
700679 |
Feb 1985 |
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Patent Grant
4849783
