Image pickup apparatus

An image pickup apparatus to which a lens unit is attachable, the image pickup apparatus comprising:

• at least one processor and a memory holding a program which makes the processor function as:
• an acquisition unit configured to acquire information about the attached lens unit;
• a control unit configured to display a setting screen on a display device, the setting screen including information indicating a range of settable adjustment values for setting an adjustment amount for adjusting a focal point shift amount of the lens unit;
• a detection unit configured to detect a user's operation;
• a setting unit capable of setting the adjustment value from a plurality of values in the range of settable adjustment values according to the user's operation detected by the detection unit;
• and
• a control unit configured to adjust the focal point shift amount of the lens unit by using the adjustment amount acquired based on the adjustment value set by the setting unit and the information about the lens unit acquired by the acquisition unit,
• wherein the display device displays, in a distinguishable manner, a first range in the range of settable adjustment values and a second range including a range larger than an upper limit of the first range and a range smaller than a lower limit of the first range, and
• the setting unit changes the first range according to the information about the lens unit acquired by the acquisition unit such that the first range when an open F-number is a first value is wider than the first range when the open F-number is a second value greater than the first value.

A control method for an image pickup apparatus, comprising:

• acquiring information about an attached lens unit;
• setting an adjustment value for setting, from a plurality of values, an adjustment amount for adjusting a focal point shift amount of the lens unit;
• and
• acquiring the adjustment amount based on the set adjustment value and the acquired information about the lens unit, and adjusting the focal point shift amount of the lens unit by using the adjustment amount,
• wherein in the setting of the adjustment value, a first range is changed according to the information about the lens unit such that the first range when an open F-number is a first value is wider than the first range when the open F-number is a second value greater than the first value, the first range being a range of settable adjustment values.

A control method for an image pickup apparatus, comprising:

• acquiring information about an attached lens unit;
• displaying, on a display device, a setting screen including information indicating a range of settable adjustment values for setting an adjustment amount for adjusting a focal point shift amount of the lens unit;
• receiving a user's operation;
• setting the adjustment value from a plurality of values in the range of settable values according to the received user's operation;
• and
• adjusting the focal point shift amount of the lens unit by using the adjustment amount acquired based on the set adjustment value and the information about the lens unit,
• wherein on the setting screen, a first range in the range of settable values and a second range including a range larger than an upper limit of the first range and a range smaller than a lower limit of the first range are displayed in a distinguishable manner, and the first range is changed according to the acquired information about the lens unit such that the first range when an open F-number is a first value is wider than the first range when the open F-number is a second value greater than the first value.