JP3265615B2 - Camera panning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera panning apparatus capable of obtaining an appropriate shutter speed even if an unskilled person performs panning.

[0002]

Conventionally, when performing panning using antivibration camera, but ing to performing panning chasing a moving subject with a camera, in this case the camera, it is determined that camera shake this However, since the camera shake correction optical system is operated, the background may be still and the main subject may be blurred.

On the other hand, Japanese Patent Laid-Open No. 154214/1990 discloses that when the panning mode is set, the speed and distance measurement data of the main subject are input to the camera in advance, the camera is kept on standby and the main subject is fixed. When appears in a screen, a camera shake correction optical system moves while the camera is stationary, and the main subject can be chased in accordance with a speed and a distance input in advance, and a panning shot can be taken.

[0004]

Generally, the shutter speed at the time of panning is slower than that at the time of general photographing in order to give a sense of liveliness of the main subject, and the degree varies depending on the moving speed of the main subject. is there. However, the relationship between the speed of the main subject and the shutter speed during panning with a conventional device is determined based on the long-standing intuition of the photographer, and there is a problem that it is difficult for an unskilled person to achieve the desired effect. Was.

The present invention has been made in view of such circumstances, and provides a camera that can provide a sufficient panning effect even for an unskilled person.

[0006]

According to a first aspect of the invention to solve such a problem, a sensor for detecting the imaging screen and an axis parallel to the camera angular velocity is detected by the sensor
Shooting screen obtained from the angular velocity and the focal length of the shooting lens
The background on the shooting screen based on the flow speed of the background above
And a shutter speed setting means for setting a shutter speed such that the flow amount of the image becomes a predetermined amount .

According to a second aspect of the present invention, there is provided a sensor for detecting an angular velocity around an axis parallel to a photographing screen, a focal length signal transmitting means for transmitting a focal length of a photographing lens to a camera body, and a sensor .
Therefore Ta than the focal length of the detected angular velocity and the photographing lens
The background flow velocity calculating means for calculating the background flow velocity on the shadow screen, and the camera is in a panning state from the background flow velocity
Panning determination means for determining whether or not panning
When it is determined that panning is performed at the step, the background flow velocity is
The flow amount of the background on the shooting screen becomes a predetermined amount based on the
Shutter speed for panning shots
And setting means .

In a third aspect based on the first or second aspect, the sensor has a first axis parallel to the photographing screen and a second axis parallel to the screen and perpendicular to the first axis. It was done.

[0009] In a fourth aspect based on the second aspect, the above-mentioned section is provided.
On the shooting screen based on the angular velocity detected by the sensor
Further comprising a shake correcting means for correcting the shake of the captured image with
If the panning determination unit determines that the panning is not a panning
In this case, the blurring of the photographed image is corrected by the blurring correcting means .

[0010]

According to a first aspect of the present invention, a panning shutter for setting an optimal shutter speed at the time of panning based on an angular velocity signal generated by a sensor for detecting a camera angular velocity around an axis parallel to a screen and a focal length of a lens. Since the speed setting means is provided, the optimum panning can be performed according to the shutter time determined by the setting means. This device is suitable, for example, for a camera equipped with a single focal length lens.

A second aspect of the present invention relates to a background flow based on an angular velocity signal generated by a sensor for detecting an angular velocity about an axis parallel to a screen, and a focal length of a photographing lens transmitted to a camera body by a focal length signal transmitting means. The background calculation speed on the screen is calculated by the speed calculation unit, and the shutter speed is set by the panning shutter speed setting unit based on the background flow speed.

In the third invention, since the sensors for detecting the angular velocities are provided orthogonally, the angular velocities in the X and Y directions are separately detected.

According to the fourth aspect of the present invention, when the panning is determined, the shutter is operated at the shutter speed set by the panning shutter speed setting means, so that photographing is performed at a shutter speed suitable for panning.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present apparatus has a first axis substantially parallel to a screen, a sensor for detecting a rotational angular velocity about a second axis also substantially parallel to the screen and substantially perpendicular to the first axis, and a focus of a photographing lens. The background velocity on the camera screen is detected from the distance. If the flow speed is higher than a certain level, the panning determination means of the camera determines that the panning is performed.

If it is determined that the shot is a panning shot, the shutter speed is set such that the amount of background flow on the screen becomes a constant value based on the background flow speed on the screen. The setting means is operated. As described above, the shutter speed at that time is set so that the camera automatically produces a panning effect based on the flow speed of the background when the panning is performed.

FIG. 1 is a diagram showing a basic configuration for realizing this function. Reference numeral 1 denotes a lens barrel, 3 denotes a screen, and 5 denotes a rotation measured around a Y axis parallel to a short side of the camera screen. Sensor for detecting the X-direction shake of the screen. Reference numeral 5 'denotes a sensor that measures rotation around the X axis parallel to the longitudinal direction of the screen of the camera and detects blur in the Y direction of the screen.

Hereinafter, blocks without dashes are blocks common to the X direction and the Y direction for blur detection correction in the X direction. Unless otherwise specified, only the description relating to the blur in the X direction will be described, and the description relating to the blur in the Y direction of the same function will be omitted.

In the present embodiment, angular velocity sensors are used as the sensors 5 and 5 'for detecting shakes in the X and Y directions. Reference numeral 7 denotes a camera shake processing circuit and panning detection means. The panning speed calculation means 26 receives the values processed by the camera shake processing circuit and the panning detection circuit 7 and calculates the tracking speed of the combined panning shooting in the X and Y directions of the camera.

The tracking speed data of the panning shot calculated by the panning shot speed calculation means 26 is supplied to the panning shot shutter speed setting means 28 so that an optimum shutter speed can be set according to the shooting conditions. The shutter 10 is driven at the shutter speed to expose the screen.

Although the above description relates to the setting of the shutter speed at the time of panning, in the present embodiment, it is necessary to take into account the prevention of camera shake and the shutter speed when photographing a still object. It gets complicated.

The rotation of the camera detected by the camera shake detection circuit and the panning detection means 7 is supplied to a correction value calculation circuit 8 where a correction signal for performing a shake correction described later is generated. This correction signal is merged with a feedback control signal from a detector, which will be described later, at a junction 9 and the actuator 1
3, 13 '. Thereby, the blur correction optical system 17 is decentered in the X direction and the Y direction. The result is taken out from the detector 15 and fed back to the junction 9 as a feedback signal.

Here, the correction value calculation circuit 8, the drive circuit 11 for eccentricity in the X direction, the actuator 13, the detector 15, and the blur correction optical system 17 are collectively referred to as X direction correction optical system driving means 33.

Similarly, in the Y direction, the correction value calculation circuit 8 ', the drive circuit 11', the actuator 13 ', the detector 15', and the blur correction optical system 17 are collectively referred to as Y direction correction optical system driving means 33 '. Name.

FIG. 2 is a flowchart showing a schematic operation of the apparatus, and FIGS. 3 and 4 are flowcharts showing a detailed operation. Although FIGS. 3 and 4 are divided into two sheets for the sake of convenience due to the size limitation of the drawings according to the electronic application, they are originally treated as one sheet.

In step 50 of FIG. 2, the angular velocity is detected and an angular velocity signal S0 is obtained.
Is offset, the offset correction processing shown in step 51 is performed to convert the signal into a vibration waveform signal S1 centered at zero. Here, when a positive offset is applied, the offset correction process 51 performs a subtraction process, and when a negative offset is applied, an addition process is performed.

Normally, the vibration of camera shake is about 10 Hz to 1
Waveforms up to about Hz overlap to form a complicated shape. However, here, for the sake of simplicity, the description will be given assuming that the vibration of the camera shake is a sine wave. Up to this point, the processing in the X direction and the processing in the Y direction are exactly the same.

FIG. 5A shows the vibration waveform signal S1 after the offset correction processing in step 51. Here, the filter processing shown in step 52 is performed on the signal S1. This processing is, as shown in FIG. 3, an X-direction low-pass filter processing 52a and an X-direction high-pass filter processing 52b.
Are performed by the following two processes.

The same applies to the Y direction, as shown in FIG. That is, the output of the offset correction processing 51 'becomes a signal S1' as shown in FIG.
1 ′ is performed by two processes of a Y-direction low-pass filter process 52a ′ and a Y-direction high-pass filter process 52b ′.

Here, a case where the photographer is panning and taking a car climbing a steep slope will be described. In such a case, assuming that the camera is held horizontally, the photographer must shake the camera in both the horizontal X direction and the vertical Y direction to take a panning shot. Therefore, FIG.
In the waveform of the angular velocity of the camera shake shown in (a), the vehicle is caught at point A in both the X and Y directions, and the vehicle is followed and shot at point B.

Since the camera follows the automobile, it rises from the zero axis in both the X and Y directions after the point B and moves at a substantially constant angular velocity. Then, at point C, the shutter closes and the panning shot is completed. Here, the signal S4 that has been subjected to the X-direction low-pass filter processing has its high-frequency component cut off and has a rising waveform as shown in FIG. 5B. This signal is an angular velocity about the Y-axis. I do.

FIG. 5B shows only the point in time when the shutter button is pressed halfway and the camera is in the preparation stage for photographing, the point in time A when the car is captured, the point in time B when chasing is started, and the point in time C when the release and exposure to the screen are completed. Are shown, and the high-frequency vibration component is cut off.

The same applies to the Y direction. The signal S4 'subjected to the Y direction low-pass filter processing 52a' is a signal similar to the signal in the X direction as shown in FIG. This signal is an angular velocity around the X axis, and this symbol is referred to as Hy for convenience.

Here, the rising heights Hx and Hy in FIG. 5B correspond to the angular velocity at which the camera is shaken. The rising Hx in the X direction and the rising Hy in the Y direction greatly differ depending on the angle of the sloping road on which the vehicle climbs. However, since the shape of the signal is the same, it is shown in one diagram as shown in FIG.

As shown in FIG. 2, when the filtering process is completed in step 52, a panning angular velocity calculation process shown in step 53 is performed. This corresponds to step 52 in FIG.
a, the signal S4 after the X-direction low-pass filter processing
Based on (Hx) and the signal S4 '(Hy) after the Y-direction low-pass filter processing in step 52a' of FIG. 4, the angular velocity is obtained by the calculation of the following equation (1). H = (H _X ² + H _Y ² ) ^1/2 (1) where H x and Hy are in rad / sec, and H is the absolute value of the panning angular velocity.

By multiplying the thus calculated angular velocity H at the time of panning by the focal length of the taking lens, the approximate flow velocity of the background on the screen can be known. Here, the panning angular velocity H is the output signal S30 after the panning speed calculation processing shown in step 53.

Next, a panning shutter speed setting process is performed as shown in step 54 of FIG. In this case, the shutter speed at which a good panning effect can be obtained at present is set based on various conditions such as the aperture value of the focal length of the photographing lens, the aperture value, the film sensitivity, the latitude, and the value provided by the angular speed S30 during panning.

The basic concept of setting the panning shutter speed is as follows. Generally, a shutter speed of 1/30 seconds to 1/250 seconds is used during panning. In panning, the angular velocity of the camera and
The product of the focal lengths of the photographing lenses is the background flow velocity V on the film surface, and multiplying this by the shutter time gives the background flow amount.

Therefore, in order to always provide a constant panning effect for the main subject, the value obtained by multiplying the background velocity V on the film surface by the shutter time may be kept constant. In other words, the required shutter time T can be obtained by dividing the desired background flow amount L by the background flow speed V on the film surface. That is, T = L / V.

Accordingly, the panning shutter speed setting processing 54 of the panning shutter speed setting means of the present invention comprises the following processing. That is, the background flow velocity calculating means 54a for calculating the background flow velocity V on the film surface by multiplying the focal length of the photographing lens by the angular velocity of the camera, an appropriate amount of background flow and the background flow velocity V on the film surface And the panning shutter speed to calculate the required shutter time T from
These are at least two components of the calculating means 54b.

FIG. 6 schematically shows the relationship between the background flow speed V on the film surface and the shutter speed.
In FIG. 6, a subject moving at a speed lower than the speed V0 is regarded as a still subject, and is operated at a conventionally known normal shutter speed.

As the background flow velocity V on the film surface increases, the shutter speed increases. For example, in the graph, the shutter speed tends to increase by one step when the flow velocity V of the background on the film surface is doubled (the shutter speed is reduced to は at the second). That is, the flow amount of the background with respect to the main subject is kept constant. Even if the shutter speed is the background flow speed higher than V1, the shutter speed is kept at 1/250 second to further emphasize the background flow.

The relationship between the background flow speed V on the film surface and the shutter speed as shown in FIG.
A fixed panning effect is always obtained between 0 and V1. The panning shutter speed setting means of the present invention sets the shutter speed closest to the calculated shutter speed within the latitude of the film when the calculated shutter speed cannot be achieved by opening and closing the aperture. It has become so. However, the above is an example of the embodiment, and it goes without saying that the selection range of the shutter speed to be used may be changed.

Here, the apparatus of the present invention has a focal length signal transmitting means for transmitting the focal length of the taking lens from the taking lens to the camera body. In a fixed-focus camera that is not an interchangeable lens type, the background flow speed is determined uniformly by only detecting the angular speed of the camera. In this case, the panning shutter speed setting means determines the shutter speed if the angular speed of the camera is determined. It should just be programmed as follows.

Next, the absolute value conversion processing shown in step 55 of FIG. 2 is performed, and in the X direction absolute value conversion processing of step 55 shown in FIG.
Regardless of the sign of x, only the absolute value of the signal is output as the signal S5.

This is to detect only the absolute value of the angular velocity at which the camera is swung, regardless of whether the panning direction is from left to right or right to left. That is, the rising signal Hx as shown in FIG. 5B is obtained by the X-direction absolute value conversion means in step 55 regardless of the direction in which the camera is swung.
This makes it possible to detect the angular velocity of panning.

Next, as shown in step 56 of FIG.
A direction panning determination process is performed. This is, as shown in FIG. 3, the output signal S of the X-direction absolute value conversion processing in step 55.
5 is subjected to the X-direction panning shooting determination processing in step 56. In this case, the flow velocity of the background on the screen is obtained by the product of the height of the angular velocity Hx of the camera and the focal length of the photographing lens in FIG. Is performing panning shooting in the X direction.

For example, if the background flow is about 0.05 mm per second, it is determined that panning is not performed in the X direction.
If the background flow is about 5 mm, it may be determined that the panning shooting is performed in the X direction. And if step 5
In the X-direction panning shooting determination processing of No. 6, a signal S6 is generated when it is determined that panning is being performed in the X direction, and no signal is generated when it is determined that panning shooting is not being performed.

Here, the X-direction absolute value conversion processor in step 55 may not be necessary depending on the processing content of the X-direction panning shooting determination processing in step 56. In this way, X-direction panning shooting determination is performed by at least the X-direction low-pass filter processing in step 52a and the X-direction panning shooting determination processing in step 56. If the X-direction panning is determined, the signal S11 that has passed through the X-direction high-pass filter is subjected to the X-direction OR switch processing to become the signal S12. Therefore, the X-direction correction optical system driving unit 33 corrects a large angular velocity by panning. Is not performed, and the main subject is not displayed on the screen.

On the other hand, the same applies to the Y direction shown in FIG. That is, when the output signal S4 'of the Y-direction low-pass filter in step 52a' is subjected to the Y-direction absolute value conversion processing in step 55 ', only the absolute value of the signal S5' is obtained regardless of the sign of the signal S4 '. Is output as'.

This is the case when the panning direction is from bottom to top,
This is to detect only the absolute value of the angular velocity at which the camera is shaken regardless of the case from the top to the bottom. That is, step 5
By performing the Y-direction absolute value conversion processing of 5 ′, the panning angular velocity can be detected by the rising Hy as shown in FIG. 5B regardless of the direction in which the camera is shaken.

The output signal S5 'of the Y-direction absolute value conversion processing in step 55' is subjected to the Y-direction panning shooting determination processing in step 56 '. Here, the flow velocity on the screen is determined by the product of the height Hy of the angular velocity of the camera shown in FIG. 5B and the focal length of the photographing lens, and it is determined whether or not the photographer is performing panning in the Y direction. .

If it is determined in step 56 'that the panning is being performed in the Y direction, a signal S6' is generated. If it is determined that panning is not being performed, no signal is generated. Here, depending on the configuration of the Y-direction follow shot discrimination means 56 ', the Y-direction absolute value conversion means in step 55' may not be necessary. In this manner, at least the Y-direction low-pass filter processing at step 52a 'and the Y-direction follow-up shooting determination processing at step 56' determine the Y-direction follow-up shooting. Since the Y direction is determined that panning Y direction high pass filtered signal S11 becomes "the signal S12 is Y-direction switching process ', Y direction correction optical system driving unit 33' is larger by panning The main subject is captured on the screen without correcting the angular velocity.

When the photographing lens mounted on the camera is a zoom lens, the focal length signal currently being photographed is input to the X-direction follow-up photographing discriminating means and the Y-direction follow-up photographing discriminating means. Thus, it can be determined whether or not panning is being performed. This is the panning shutter speed setting processing 5 of the panning shutter speed setting means described above.
The same applies to No. 4.

In the case of a zoom lens, a focal length signal is provided, for example, by providing a brush on a zoom ring or a member interlocked with the zoom ring, and by sliding on a gray code, the CPU on the lens side digitally reads the focal length, thereby obtaining an electrical signal. Signal is transmitted to the camera body. The focal length of the single focus lens is digitally written in software of the CPU on the lens side, and the focal length of the lens is transmitted to the camera side by an electric signal. The focal length transmitting means is configured as described above.

Here, in the case of a camera mounted with a lens having a single focal length that is not a lens-interchangeable type, the rotation around the Y axis or X
Since the flow velocity of the background on the screen is determined only by the angular velocity of the camera around the axis, the panning determination processing may be performed only by the angular velocity of the camera. That is, if the angular velocity is about 0.349 rad (about 20 degrees) per second, it is determined that the panning is being performed. This is the same for the X-direction panning shooting determination processing of step 56 and the Y-direction panning shooting determination processing 56 '.

In the signal S11 subjected to the X-direction high-pass filter processing shown in step 52b in FIG. 3, the low-frequency component of the angular velocity of the blur is cut off, and only the high-frequency component is output. FIG. 5C shows this, in which the rising portion that occurs during panning is cut off, leaving only the high-frequency component. This high-frequency component is uneven tracking of a main subject that occurs during panning.

Although this unevenness does not appear in the photograph when photographing at a relatively high shutter speed during panning, the X-ray of the main subject is set when a slow shutter speed is set in order to obtain a sufficient panning effect. Appears as blurred direction. Therefore, an X-direction OR switch process shown in step 57 of FIG. 2 is performed. The X-direction OR switch processing shown in step 58 is for correcting normal camera shake.

The output signal S11 in the X-direction high-pass filter process in step 52b is subjected to the X-direction OR switch process shown in step 152. Up to three signals are input to the X-direction OR switch process in step 152. That is, the offset correction processing output signal S1 from step 51, the X-direction high-pass filter processing output signal S11 of step 52b, and the X-direction follow shot determination processing output signal S6 of step 56.

The X-direction OR switch processing in step 152 is the X-direction follow shot determination processing output signal S6 in step 56.
When the panning is performed in which is generated, only the X-direction high-pass filter processing output signal S11 in step 52b is accepted and the signal is output as the signal S12. This is to correct tracking unevenness of the main subject during panning.
However, at the time of normal shooting in which the output signal S6 in the X direction panning determination processing of Step 56 is not generated, that is, when the panning shooting is not performed, the signal S1 after the offset correction performed in Step 51 is processed by the X direction OR switch processing of Step 152. Is output as a signal S12. This is for correcting a normal camera shake.

The above description is for the processing in the X direction, but substantially the same processing is performed in the Y direction. That is, in the step 56 'of FIG. 2, the Y direction panning determination is performed, and the Y direction OR switch processing of the step 57' or step 58 'is performed according to the result.

When the Y-direction OR switch processing of step 58 ', that is, the processing of outputting the offset correction output signal S1' as the signal S12 'of step 51', is performed, the stationary subject is shake-corrected in the Y direction. Is performed. In step 59, the X-direction panning shooting is judged again. That is, in step 56, it is confirmed again whether or not panning is performed in the X direction.

In step 59, if panning is not performed in the X direction, panning is not performed in both the X and Y directions.
In step 60 of FIG. 2, the shutter speed is set and a shutter signal S20 is output. However, when the X-direction panning shooting is determined in step 59, since the X-direction panning shooting, the shutter speed selection processing in step 61 is performed.

The shutter speed setting means shown in the above-mentioned step 60 is used when photographing a still subject, and is based on information such as the photographic lens aperture value, subject brightness, film sensitivity, latitude, and the like. Is set. The output signal S20 of the shutter speed setting process in step 60 is subjected to the shutter speed selection process shown in step 61 in FIG.

As described above, in the shutter speed selection processing in step 61, a total of four signals are inputted at the maximum.
That is, the output signal S31 of the panning shutter speed setting process of step 54, the output signal S20 of the shutter speed setting process of step 60, the output signal S6 of the X direction panning determination process of step 56, and the Y direction flowing of step 56 '. These are the four output signals S6 'of the shooting determination process.

The shutter speed selection processing shown in step 61 depends on whether the camera is in the panning state or not, and the output signal S of the panning shutter speed setting processing in step 54 is determined.
31 is used as the output signal S32 of the shutter speed selection process of step 61, and the output signal S20 of the shutter speed setting process of step 60 is used as the output signal S32.

More specifically, either the output signal S6 of the X-direction panning shooting determination process in step 56 or the output signal S6 'of the Y-direction panning shooting determination process 29' in step 56 ', or at least one of them is a shutter speed selection means. If it is input to 30, the camera determines that the camera is in the panning shooting state, and outputs the output signal S31 of the panning shutter speed setting process as the output signal S32 as it is.

On the other hand, at this stage, the correction optical system starts driving as shown in step 62 of FIG.
The output signal S12 subjected to the X-direction OR switch processing shown in FIG.
In step 62, the signal subjected to the X-direction correction optical system drive processing,
In the output signal S12 'subjected to the Y-direction OR switch processing shown in Step 152' in FIG. 4, the signal subjected to the Y-direction correction optical system driving processing in Step 62 'is supplied to the correction optical systems 33 and 33', and the signal is output when the panning is performed. Correction is performed. And FIG.
The exposure process is performed as shown in step 63 of FIG.

In this exposure, the output signal S31 of the panning shutter speed setting process shown in step 54 during panning
The shutter 10 on the screen is opened and closed at the shutter time of. If neither the signal S6 nor the signal S6 'is input to the shutter speed selection process in step 61, the camera determines that panning is not performed, and outputs the output signal S20 of the shutter speed setting process shown in step 60 to step 61. Is selected and transmitted to the shutter 10 as its output S32. The shutter 10 opens and closes the screen at the shutter speed of the output signal S20 of the shutter speed setting process of step 60 used when photographing a still subject.

Here, when the panning is not performed,
Since the signal S6 is not input to the step 152 of FIG. 3, the step 152 receives the signal S1 subjected to the offset correction in the step 51 and outputs the signal S1 as it is as the output signal S12. At this time, the signal S12 is subjected to an X-direction correction optical system driving process in step 62, and is input to the X-direction correction optical system driving means 33 to perform normal X-direction camera shake correction. The operation is exactly the same in the Y direction, and the description is omitted. As described above, the shutter speed selecting means selects each optimum shutter time depending on whether panning is taking place or not.

[0070]

According to the present invention, the camera automatically enters the panning state during panning. At this time, a low-pass filter is inserted into the transmission system of the camera shake detection signal to detect the angular velocity of the panning shot, and the shutter speed at the time of the panning shot is automatically determined from this value and the focal length of the lens.

In addition, the shutter speed is automatically determined from the panning shooting state by a well-known method while the camera shake is prevented by the image stabilizing function even in the case of general shooting other than panning shooting. Therefore, the camera of the present invention can automatically determine the shutter speed in any case. As described above, according to the present invention, the panning shutter speed setting means is operated according to the background flow speed on the film surface, so that the panning shutter speed conventionally relies on the experience and intuition of the photographer. This has the effect of being automatically determined by taking advantage of the effect of panning.

Also, since the panning discriminator is provided in both the X direction and the Y direction, the photographer suddenly stops or starts panning even for a subject moving obliquely with respect to the screen. Also in this case, there is an effect that a still picture without blurring or a panning shot without blurring of a main subject can be performed without any previous operation.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a schematic operation of an embodiment of the present invention.

FIG. 3 is a flowchart illustrating an operation of processing data in an X direction according to an embodiment of the present invention.

FIG. 4 is a flowchart illustrating an operation of processing data in the Y direction according to an embodiment of the present invention.

FIG. 5 is a diagram showing a blur waveform at the time of a panning shot;

FIG. 6 is a diagram illustrating a relationship between a background flow speed and a shutter speed in a panning shutter speed setting unit;

[Explanation of symbols]

 Reference Signs List 1 lens barrel 3 screen 5 sensor for detecting shake in X direction 5 'sensor for detecting shake in Y direction 7 camera shake processing circuit and panning detection means 9 junction of feedback control 10 shutter 11 (for eccentricity in X direction) drive Circuit 13 Actuator 15 Detector 17 Blur correction optical system

Continuation of the front page (56) References JP-A-3-83459 (JP, A) JP-A-1-130143 (JP, A) JP-A-3-92830 (JP, A) JP-A-3-273221 (JP) JP-A-4-57481 (JP, A) JP-A-2-154214 (JP, A) JP-A-3-248132 (JP, A) JP-A-3-161726 (JP, A) JP-A-4-68323 (JP, A) JP-A-4-96031 (JP, A) JP-A-5-14801 (JP, A) JP-A-5-66448 (JP, A) JP-A-5-113595 (JP, A A) JP-A-5-134283 (JP, A) JP-A-5-134284 (JP, A) (58) Fields studied (Int. Cl. ⁷ , DB name) G03B 5/00-5/08

Claims (4)

(57) [Claims] A sensor for detecting an angular velocity of the camera about an axis parallel to a photographing screen; and an angular velocity detected by the sensor and a focus of the photographing lens.
Based on the background speed on the shooting screen obtained from the point distance
And the amount of background flow on the shooting screen becomes a predetermined amount.
And a panning shutter speed setting means for setting a shutter speed. 2. A camera equipped with a zoom lens or a lens having a predetermined focal length, a sensor for detecting an angular velocity about an axis parallel to a photographing screen, and a focal length signal transmission for transmitting a focal length of the photographing lens to a camera body. Means, a background flow velocity calculating means for calculating a background flow velocity on a photographing screen from the angular velocity detected by the sensor and a focal length of the photographing lens, and whether or not the camera is in a panning shooting state from the background flow velocity. Panning determination means for determining, and when the panning determination is determined by the panning determination means ,
The background flow on the shooting screen based on the background flow speed
A panning shutter speed setting means for setting a shutter speed such that a shift amount becomes a predetermined amount . 3. The camera according to claim 1, wherein the sensor has a first axis parallel to the photographing screen and a second axis parallel to the screen and perpendicular to the first axis. Panning device. 4. The sensor according to claim 2, wherein
Based on the detected angular velocity, the photographed image is displayed on the photographing screen.
Further comprising a shake correcting means for correcting the camera shake, and when the panning determination is made by the panning determination means,
In the case, the camera shake photographing device corrects the shake of the photographed image by the shake correcting means .