Image pickup apparatus including focus operating apparatus and focus control method

摘要

Provided is an image pickup apparatus including a lens apparatus and a focus operating apparatus. The lens apparatus includes a focus lens unit, a focus driving unit for driving the focus lens unit, and a drive control unit controlling to drive the focus driving unit and having a autofocus function. The focus operating apparatus includes a manual focus (MF) operating unit for manual focus adjustment and an MF command unit for outputting a command value based on an operation amount of the MF operating unit. When the MF operating unit is in operation, the drive control unit controls the focus driving unit based on the command value from the MF command unit. When the MF operating unit is not in operation, the drive control unit controls the focus driving unit to perform autofocus adjustment.

主权项

1. A lens system, comprising:
a lens apparatus including:
a focus lens unit;a focus driving unit for driving the focus lens unit within a driving range; anda drive control unit which controls to drive the focus driving unit based on a position command; and a focus operating apparatus including:
a manual focus operating unit for a manual focus adjustment; anda manual focus command unit for outputting, to the drive control unit, a position command which indicates a position of the focus lens unit with respect to the driving range based on an operation amount of the manual focus operating unit, wherein the manual focus operating unit is endlessly rotatable, wherein the manual focus command unit is configured to output, to the drive control unit, the position command in a position command range wider than the driving range of the focus lens unit, wherein if the position command is out of the driving range, the manual focus command unit updates the position command to a position command which corresponds to one of a close side end or an infinite side end of the driving range and is an end nearer to the position command out of the driving range, and wherein the drive control unit drives the focus driving unit in a manual mode in which a focus adjustment is performed manually when the drive control unit determines that the position command changed during a predetermined period, and drives the focus driving unit in an autofocus mode in which the focus adjustment is performed automatically when the drive control unit determines that the position command did not change during the predetermined period.