Photographing system
AssigneeCanon Kabushiki Kaisha
InventorKenichi Kubo
Life of this patent
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Abstract
A photographing system includes a lens apparatus having an image blur correcting device configured to correct and/or reduce image blur caused by vibration, a vibration sensor for detecting vibration applied to the lens apparatus, a position detecting device configured to detect a position change of the lens apparatus, and a controlling device configured to control the image blur correcting device using a detection signal of the position detecting device. The photographing system reduces the influence of low frequency noise of a vibration sensor, while maintaining the quality of a vibration isolation function of the lens apparatus.
Claims11
A photographing system comprising:
- a lens apparatus having an image blur correcting device configured to correct image blur;
- a vibration sensor for detecting vibration applied to the lens apparatus;
- a position detecting device configured to detect a position change of the lens apparatus;
- and
- a controlling device configured to cause the image blur correcting device to perform image blur correction accordance with a correction amount which is based on an output value of the vibration sensor, when an output value of the position detecting device is greater than or equal to a predetermined value, and for causing the image blur correcting device not to perform image blur correction, when the output value of the position detecting device is smaller than a predetermined value.
A photographing system comprising:
- a lens apparatus having an image blur correcting device configured to correct and/or reduce image blur;
- a vibration sensor for detecting vibration applied to the lens apparatus;
- a position detecting device configured to detect a position change of the lens apparatus;
- and
- a controlling device configured to cause the image blur correcting device not to perform image blur correction, when a difference signal between an output signal of the vibration sensor and an output signal of the position detecting device has a frequency lower than a noise determination frequency which is specific to the vibration sensor.
Dependencies are inferred from the claim text.