Imaging apparatus and zoom lens with adjustable stop positions

摘要

An imaging apparatus includes a zoom lens, an operation unit that receives an operation for changing a magnification of the zoom lens, an imaging unit that generates image data based on a subject image formed via the zoom lens, a driver that moves the zoom lens stepwise to one of predetermined stop positions corresponding to each of a plurality steps according to the operation received by the operation unit, and a controller that controls the driver. The controller changes the stop position of the zoom lens at each step according to a size of a region of the imaging unit on which the image data is generated so that a converted focal length at the stop position of the zoom lens at each step is the same regardless of the size of the region.

主权项

1. An imaging apparatus comprising:
a zoom lens; an operation unit that receives an operation for changing a magnification of the zoom lens; an imaging unit that generates image data based on a subject image formed via the zoom lens; a driver that moves the zoom lens stepwise to one of predetermined stop positions corresponding to each of a plurality steps according to the operation received by the operation unit; and a controller that controls the driver, wherein the controller changes the stop position of the zoom lens at each step according to a size of a region of the imaging unit on which the image data is generated so that a converted focal length at the stop position of the zoom lens at each step is the same regardless of the size of the region, and the converted focal length is a focal length of the zoom lens obtained by converting an actual focal length of the zoom lens based on a predetermined basis.