Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a rear lens group including one or more lens units. An interval between lens units disposed adjacent to each other changes during zooming. A first positive lens is disposed closest to an object and has a positive refractive power. The first lens unit is stationary for zooming, and consists of first and second partial units. The first lens unit and the second lens unit are disposed in order from the object side to the image side. Among air gaps on an optical axis of lenses disposed adjacently in the first lens unit, an air gap on the optical axis between the first and second partial units is the greatest. Predetermined inequalities are satisfied.

Abstract: An imaging device includes one or more memories, and one or more processors in communication with the one or more memories. The one or more processors and the one or more memories are configured to capture an image, display a live view image obtained by capturing the image on a display unit, and in a case where a piece of camerawork used to capture a moving image is selected from among a plurality of pieces of camerawork indicating imaging methods for capturing a moving image, then based on attribute information regarding the selected piece of camerawork, perform control to display on the display unit a guide that instructs a user to make a motion according to the selected piece of camerawork.

Abstract: A zoom lens includes a first lens unit, a second lens unit, a third lens unit, and a rear lens group. The first lens unit has a positive refractive power. The third lens unit has a negative refractive power. The rear lens group includes one or more lens units. The first lens unit, the second lens unit, the third lens unit, and the rear lens group are disposed in order from an object side to an image side. An interval between lens units disposed adjacent to each other changes during zooming. The rear lens group includes all of lens units disposed closer to an image than the third lens unit. The first lens unit includes a first positive lens disposed closest to an object and having a positive refractive power. The rear lens group has a positive refractive power at a wide-angle end. Predetermined inequalities are satisfied.

Abstract: An optical system includes at least one lens, and a meta-lens having a lens surface that generates a phase change in a wavefront of light passing through the meta-lens. A phase function of the lens surface, representing a phase change amount on the wavefront corresponding to a position in a radial direction of the meta-lens, includes an inflection point.

Abstract: An optical system includes six or less lenses, wherein the six or less lenses include a plurality of positive lenses, and a final lens having negative refractive power and disposed closest to an image, and wherein, where a total optical length obtained by addition of a back focus to a distance from a lens surface closest to an object in the optical system to a final lens surface is TL, a half angle of view is ?[°], a focal length of a whole system is f, and an average value of a refractive index of a lens having a highest refractive index and a refractive index of a lens having a second highest refractive index among the plurality of positive lenses is np12ave, following conditions are satisfied: 0.50<TL/(f×tan ?)<1.90, and 1.80<np12ave<2.20.

Abstract: An optical system includes, in order from an object side to an image side, a first lens having negative refractive power, a second lens having positive refractive power, a third lens having positive refractive power, and a fourth lens having negative refractive power. A first lens surface on the object side of the first lens is aspheric, and the first lens surface has an area in which a curvature that is convex toward the object side increases from a central portion to a peripheral portion. Predetermined inequalities are satisfied.

Abstract: In a production information processing apparatus, a storage device stores a resource shared among a plurality of machines belonging to a predetermined manufacturing area, 4M data information that is time-series data of operating states per unit time of the machines and the resource related to the machines, and a production loss analysis model that defines a criterion for determining a production loss from a combination of the operating states per unit time in the 4M data information, and a processor identifies a production loss of each of the machines to generate production loss information, and combines the production loss information of one of the machines and 4M data information of another of the machines that is different from the machine and shares the resource, using the production loss information and the shared resource, to classify an occurrence factor of the production loss and generate loss occurrence factor information.

Abstract: An optical system includes, in order from an object side to an image side, a front unit having negative refractive power, an aperture stop, and a rear unit having positive refractive power. The front unit includes a plurality of aspheric lenses. A predetermined condition is satisfied.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a third lens unit having a negative refractive power, and a fourth lens unit having a positive refractive power. The first lens unit includes a negative lens B1Ln with a concave surface facing the object side. The second lens unit includes at least one negative lens. During zooming from a wide-angle end to a telephoto end, the first lens unit moves, and the fourth lens unit is fixed or moves from the object side to the image side. A predetermined condition is satisfied.

Abstract: An optical system includes a front lens unit, a first focusing unit having a negative refractive power, and a second focusing unit having a negative refractive power in this order from an object side to an image side. The optical system is a single focus optical system. When a focus is shifted from an object at infinity to an object at a short distance, the first focusing unit and the second focusing unit move to change a distance between the first focusing unit and the second focusing unit on an optical axis.

Abstract: An optical system includes a front lens unit with positive refractive power, an intermediate lens unit, and a rear lens unit in order from an object side to an image side. The intermediate lens unit moves to change an interval between the front lens unit and the intermediate lens unit and an interval between the intermediate lens unit and the rear lens unit in focusing from infinity to a close range. The focal length of the front lens unit and the effective diameter of a lens surface closest to the image side in the rear lens unit satisfy a predetermined inequality.

Abstract: An optical system includes a front lens unit, a first focusing unit having a negative refractive power, and a second focusing unit having a negative refractive power in this order from an object side to an image side. The optical system is a single focus optical system. When a focus is shifted from an object at infinity to an object at a short distance, the first focusing unit and the second focusing unit move to change a distance between the first focusing unit and the second focusing unit on an optical axis.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a third lens unit having a negative refractive power, and a fourth lens unit having a positive refractive power. The first lens unit includes a negative lens B1Ln with a concave surface facing the object side. The second lens unit includes at least one negative lens. During zooming from a wide-angle end to a telephoto end, the first lens unit moves, and the fourth lens unit is fixed or moves from the object side to the image side. A predetermined condition is satisfied.