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US-20260129291-A1 - IMAGING APPARATUS, OPERATION METHOD OF IMAGING APPARATUS, AND OPERATION PROGRAM OF IMAGING APPARATUS

US20260129291A1US 20260129291 A1US20260129291 A1US 20260129291A1US-20260129291-A1

Abstract

An imaging apparatus includes a determination unit. The determination unit determines, using a first focal position of a focus lens at a first time point, a second focal position of the focus lens at a second time point after the first time point in continuous imaging. In a case where an imaging preparation instruction is received and a setting condition is satisfied, the determination unit determines the second focal position using the first focal position acquired after the imaging preparation instruction.

Inventors

  • Hinako SUZUKI

Assignees

  • FUJIFILM CORPORATION

Dates

Publication Date
20260507
Application Date
20251102
Priority Date
20241105

Claims (14)

  1. 1 . An imaging apparatus that determines, using information related to a first focal position of a focus lens at a first time point, a second focal position of the focus lens at a second time point after the first time point, the imaging apparatus comprising: a processor, wherein the processor is configured to, in a case where a first imaging instruction is received and a preset condition is satisfied, determine the second focal position using the information related to the first focal position acquired after the first imaging instruction.
  2. 2 . The imaging apparatus according to claim 1 , wherein the first time point and the second time point in a case where the first imaging instruction is received and the condition is satisfied are after the first imaging instruction.
  3. 3 . The imaging apparatus according to claim 2 , wherein the processor is configured to, in a case where the first imaging instruction is received and the condition is satisfied, determine the second focal position without using the information related to the first focal position acquired before the first imaging instruction.
  4. 4 . The imaging apparatus according to claim 1 , wherein the condition is that an interval between the first imaging instruction and a second imaging instruction given after the first imaging instruction is shorter than a preset threshold interval.
  5. 5 . The imaging apparatus according to claim 1 , wherein the condition is that a difference between a position of the focus lens and the first focal position before the first imaging instruction is equal to or greater than a preset threshold difference.
  6. 6 . The imaging apparatus according to claim 5 , wherein the processor is configured to perform a live view image output process of outputting a live view image of a subject, in which information related to at least the first focal position is derived but the focus lens is not moved to the second focal position, and the difference is a difference between the position of the focus lens and the first focal position in the live view image output process immediately before the first imaging instruction is issued.
  7. 7 . The imaging apparatus according to claim 1 , wherein the processor is configured to, in a case where an interval between the first imaging instruction and a second imaging instruction given after the first imaging instruction is equal to or longer than a preset threshold interval, determine the second focal position using the information related to the first focal position acquired before the first imaging instruction.
  8. 8 . The imaging apparatus according to claim 1 , wherein the processor is configured to, in a case where a difference between a position of the focus lens and the first focal position before the first imaging instruction is less than a preset threshold difference, determine the second focal position using the information related to the first focal position acquired before the first imaging instruction.
  9. 9 . The imaging apparatus according to claim 1 , wherein the processor is configured to, in a case where an interval between the first imaging instruction and a second imaging instruction given after the first imaging instruction is equal to or longer than a preset threshold interval and in a case where a difference between a position of the focus lens and the first focal position before the first imaging instruction is less than a preset threshold difference, determine the second focal position using the information related to the first focal position acquired before the first imaging instruction.
  10. 10 . The imaging apparatus according to claim 1 , wherein continuous imaging is performed, and the continuous imaging includes a continuous mode in which movement of the focus lens to the second focal position output in time series is continuously performed, and a single mode in which the focus lens is fixed at one second focal position, and the processor is configured to in a case where the condition is satisfied in the continuous mode, determine the second focal position using the information related to the first focal position acquired after a second imaging instruction given after the first imaging instruction without using the information related to the first focal position acquired before the first imaging instruction, and in a case of the single mode, determine the second focal position using the information related to the first focal position acquired before the first imaging instruction.
  11. 11 . The imaging apparatus according to claim 1 , wherein continuous imaging is performed, and the continuous imaging includes a release priority mode in which an operation of a release button is prioritized over an in-focus state of the focus lens, and a focus priority mode in which the in-focus state of the focus lens is prioritized over the operation of the release button, and the processor is configured to in a case where the condition is satisfied in the release priority mode, determine the second focal position using the information related to the first focal position acquired after a second imaging instruction given after the first imaging instruction without using the information related to the first focal position acquired before the first imaging instruction, and in a case of the focus priority mode, determine the second focal position using the information related to the first focal position acquired before the first imaging instruction.
  12. 12 . The imaging apparatus according to claim 1 , wherein the first imaging instruction is an instruction in response to a halfway-press operation of a release button, and a second imaging instruction given after the first imaging instruction is an instruction in response to a full-press operation of the release button.
  13. 13 . An operation method of an imaging apparatus that determines, using information related to a first focal position of a focus lens at a first time point, a second focal position of the focus lens at a second time point after the first time point, the operation method comprising: determining the second focal position using the information related to the first focal position acquired after a first imaging instruction, in a case where the first imaging instruction is received and a preset condition is satisfied.
  14. 14 . A non-transitory computer-readable storage medium storing an operation program of an imaging apparatus that determines, using information related to a first focal position of a focus lens at a first time point, a second focal position of the focus lens at a second time point after the first time point, the operation program causing a computer to execute a process comprising: determining the second focal position using the information related to the first focal position acquired after a first imaging instruction, in a case where the first imaging instruction is received and a preset condition is satisfied.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application claims priority under 35 U.S.C. §119 to Japanese Patent Application No. 2024-193623, filed on November 5, 2024. The above application is hereby expressly incorporated by reference, in its entirety, into the present application. BACKGROUND 1. Technical Field The technology of the present disclosure relates to an imaging apparatus, an operation method of an imaging apparatus, and an operation program of an imaging apparatus. JP2023-009123A discloses an imaging apparatus comprising a processor and an image sensor in which light is focused by an imaging lens including a focus lens, in which the focus lens moves in accordance with an instruction of the processor while avoiding a period of main exposure by the image sensor, and the main exposure is continuously performed by the image sensor at a predetermined time interval to perform continuous imaging. The processor calculates a first focal position of the focus lens with respect to a specific subject based on image data obtained by imaging the specific subject with the main exposure using the image sensor in a specific frame in which the main exposure is performed in a continuous imaging period, and predicts a second focal position of the focus lens with respect to the specific subject in a frame ahead of the specific frame by a plurality of frames with reference to the first focal position for a plurality of frames in the continuous imaging period. SUMMARY One embodiment according to the technology of the present disclosure provides an imaging apparatus, an operation method of an imaging apparatus, and an operation program of an imaging apparatus, with which reliability of a focal position of a focus lens determined in continuous imaging can be improved. According to the present disclosure, there is provided an imaging apparatus that determines, using information related to a first focal position of a focus lens at a first time point, a second focal position of the focus lens at a second time point after the first time point in continuous imaging, the imaging apparatus comprising: a processor, in which the processor is configured to, in a case where a first imaging instruction is received and a preset condition is satisfied, determine the second focal position using the information related to the first focal position acquired after the first imaging instruction. It is preferable that the first time point and the second time point in a case where the first imaging instruction is received and the condition is satisfied are after the first imaging instruction. It is preferable that the processor is configured to, in a case where the first imaging instruction is received and the condition is satisfied, determine the second focal position without using the information related to the first focal position acquired before the first imaging instruction. It is preferable that the condition is that an interval between the first imaging instruction and a second imaging instruction given after the first imaging instruction is shorter than a preset threshold interval. It is preferable that the condition is that a difference between a position of the focus lens and the first focal position before the first imaging instruction is equal to or greater than a preset threshold difference. It is preferable that the processor is configured to perform a live view image output process of outputting a live view image of a subject, in which information related to at least the first focal position is derived but the focus lens is not moved to the second focal position, and that the difference is a difference between the position of the focus lens and the first focal position in the live view image output process immediately before the first imaging instruction is issued. It is preferable that the processor is configured to, in a case where an interval between the first imaging instruction and a second imaging instruction given after the first imaging instruction is equal to or longer than a preset threshold interval, determine the second focal position using the information related to the first focal position acquired before the first imaging instruction. It is preferable that the processor is configured to, in a case where a difference between a position of the focus lens and the first focal position before the first imaging instruction is less than a preset threshold difference, determine the second focal position using the information related to the first focal position acquired before the first imaging instruction. It is preferable that the processor is configured to, in a case where an interval between the first imaging instruction and a second imaging instruction given after the first imaging instruction is equal to or longer than a preset threshold interval and in a case where a difference between a position of the focus lens and the first focal position before the first imaging instruction is less than a preset thre