Optical apparatus and its control method
AssigneeCanon Kabushiki Kaisha
InventorMASAMI ICHINOSE
Life of this patent
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Abstract
An optical apparatus includes a first operation unit operable to switch between a first mode for setting a driving range of a focus lens in autofocus to a first range and a second mode for setting the driving range to a second range narrower than the first range, a second operation unit operable to issue a start command of a focus limit operation for limiting the driving range to the second range in the second mode, and a processor configured to set the second range to a range that has a reference position at a position of the focus lens when the start command is issued or a position to which the focus lens is driven by the autofocus after the start command is issued, and control driving of the focus lens by the autofocus within the second range after the second range is set.
Claims12
An optical apparatus comprising:
- a first operation unit operable to switch between a first mode for setting a driving range of a focus lens in autofocus to a first range and a second mode for setting the driving range of the focus lens in the autofocus to a second range narrower than the first range;
- a second operation unit operable to issue a start command of a focus limit operation for limiting the driving range to the second range in the second mode;
- and
- a processor configured to:
- set the second range to a range that has a reference position at a position of the focus lens when the start command is issued or a position to which the focus lens is driven by the autofocus after the start command is issued, according to the start command in a case where the focus lens can be driven by the autofocus and the second mode is set, and
- control driving of the focus lens by the autofocus within the second range after the second range is set.
A control method for an optical apparatus that includes a first operation unit operable to switch between a first mode for setting a driving range of a focus lens in autofocus to a first range and a second mode for setting the driving range of the focus lens in the autofocus to a second range narrower than the first range, and a second operation unit operable to issue a start command of a focus limit operation for limiting the driving range to the second range in the second mode, the control method comprising:
- setting the second range to a range that has a reference position at a position of the focus lens when the start command is issued or a position to which the focus lens is driven by the autofocus after the start command is issued, according to the start command in a case where the focus lens can be driven by the autofocus and the second mode is set;
- and
- controlling driving of the focus lens by the autofocus within the second range after the second range is set.
A non-transitory computer-readable storage medium storing computer-executable instructions for causing a computer to execute a control method for an optical apparatus that includes a first operation unit operable to switch between a first mode for setting a driving range of a focus lens in autofocus to a first range and a second mode for setting the driving range of the focus lens in the autofocus to a second range narrower than the first range, and a second operation unit operable to issue a start command of a focus limit operation for limiting the driving range to the second range in the second mode, the control method comprising:
- setting the second range to a range that has a reference position at a position of the focus lens when the start command is issued or a position to which the focus lens is driven by the autofocus after the start command is issued, according to the start command in a case where the focus lens can be driven by the autofocus and the second mode is set;
- and
- controlling driving of the focus lens by the autofocus within the second range after the second range is set.
Dependencies are inferred from the claim text.