Image pickup apparatus, control method therefore, and program communicating with an external device

A method of controlling an image pickup apparatus that communicates with an external apparatus comprising:

• receiving, from the external apparatus, an instruction for changing a zoom position of a lens;
• performing control processing to change a zoom position of the lens based on the received instruction;
• and
• determining whether the external apparatus includes a predetermined function regarding zooming of the lens, wherein the predetermined function includes a function for setting a speed of zooming,
• wherein, in a case where it is determined that the external apparatus includes the predetermined function regarding zooming of the lens, a zoom adapter, which is physically attached to the lens and is capable of driving the lens by rotating a lens barrel, is controlled to change a zoom position of the lens based on a zoom setting notified by the external apparatus, and
• wherein, in a case where it is determined that the external apparatus does not have the predetermined function regarding zooming of the lens, the zoom adapter is controlled to change a zoom position of the lens based on a zoom setting performed in the zoom adapter.

A non-transitory computer readable storage medium storing a program for causing a computer to execute a method, the method comprising:

• receiving, from an external apparatus, an instruction for changing a zoom position of a lens;
• performing control processing to change a zoom position of the lens based on the received instruction;
• and
• determining whether the external apparatus includes a predetermined function regarding zooming of the lens, wherein the predetermined function includes a function for setting a speed of zooming,
• wherein, in a case where it is determined that the external apparatus includes the predetermined function regarding zooming of the lens, a zoom adapter, which is physically attached to the lens and is capable of driving the lens by rotating a lens barrel, is controlled to change a zoom position of the lens based on a zoom setting notified by the external apparatus, and
• wherein, in a case where it is determined that the external apparatus does not include the predetermined function regarding zooming of the lens, the zoom adapter is controlled to change a zoom position of the lens based on a zoom setting performed in the zoom adapter.

An apparatus that communicates with an external apparatus comprising:

• a processor;
• and
• a memory storing a program for causing, when executed by the processor, the apparatus to function as:
• a receiving unit configured to receive, from the external apparatus, an instruction for changing a zoom position of a lens of an image pickup apparatus;
• a control unit configured to perform control processing to change a zoom position of the lens based on the instruction received by the receiving unit;
• and
• a determination unit configured to determine whether the external apparatus includes a predetermined function regarding zooming of the lens, wherein the predetermined function includes a function for setting a speed of zooming,
• wherein, in a case where the determination unit determines that the external apparatus includes the predetermined function regarding zooming of the lens, the control unit controls a zoom adapter, which is physically attached to the lens and is capable of driving the lens by rotating a lens barrel, to change a zoom position of the lens based on a zoom setting notified by the external apparatus, and
• wherein, in a case where the determination unit determines that the external apparatus does not have the predetermined function regarding zooming of the lens, the control unit controls the zoom adapter to change a zoom position of the lens based on a zoom setting performed in the zoom adapter.