A variable power optical system (ZL (1)) includes a plurality of lens groups (G1-G7). During variable magnification, an interval between adjacent lens groups changes. The plurality of lens groups include: a first focusing lens group (G5) that moves during focusing; and a second focusing lens group (G6) that is disposed more toward an imaging surface side than the first focusing lens group and that moves along a different trajectory than the first focusing lens group during focusing. The first focusing lens group and the second focusing lens group both have a negative refractive power. The plurality of lens groups satisfy the following condition: 0.40<fF1/fF2<3.50 (wherein fF1 is the focal distance of the first focusing lens group, and fF2 is the focal distance of the second focusing lens group).

A variable power optical system (ZL (1)) includes a plurality of lens groups (G1-G7). During variable magnification, an interval between adjacent lens groups changes. The plurality of lens groups include: a first focusing lens group (G5) that moves during focusing; and a second focusing lens group (G6) that is disposed more toward an imaging surface side than the first focusing lens group and that moves along a different trajectory than the first focusing lens group during focusing. The first focusing lens group and the second focusing lens group both have a negative refractive power. The first focusing lens group or the second focusing lens group includes at least one lens having a positive refractive power, and is configured so as to satisfy the following condition: 1.40<fFP/(−fFN)<3.50 (wherein fFP is the focal distance of a lens with the strongest positive refractive power in the first focusing lens group or the second focusing lens group, and fFN is the focal distance of a lens with the strongest negative refractive power in the first focusing lens group or the second focusing lens group).

A zoom lens includes, from an object side to an image side, a positive first lens unit configured not to move for zooming, at least three movable lens units configured to move for zooming, and a positive final lens unit closest to the image side in lens units and configured not to move for zooming. In the at least three movable lens units, a lens unit closest to the image side has a positive power, and a lens unit second closest to the image side has a negative power. The first lens unit includes a first sub unit closest to the object side and configured not to move for focusing and a second sub unit configured to move for focusing. The final lens unit includes a positive lens closest to the image side in elements having a refractive power in the final lens unit. Predetermined inequalities are satisfied.

The zoom lens includes a positive first lens group, a negative second lens group, a positive third lens group, a negative fourth lens group, a negative fifth lens group, and a positive sixth lens group in order from an object side. All distances between adjacent lens groups change during zooming. The first lens group consists of a negative lens, a positive lens, and a positive lens in order from the object side. Only the fourth lens group moves to an image side during focusing from a long range to a short range. Conditional Expression related to a distance from a lens surface of the first lens group closest to the object side to an image plane and a distance from a lens surface of the second lens group closest to the object side to the image plane is satisfied.

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens sequentially includes, from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power. The camera optical lens satisfies following conditions: 1.00≤(v2+v4)/v3≤1.90; 9.00≤f3/f2≤15.00; and 8.00≤f4/f5≤30.00, where v2, v3 and v4 denote abbe numbers of the second, third and fourth lenses, respectively; and f2, f3, f4 and f5 denote focal lengths of the second, third, fourth and fifth lenses, respectively. The camera optical lens according to the present disclosure can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.

An optical apparatus includes holders configured to hold on a base member a third holding member that holds a third optical element among a plurality of optical elements, and provided at three locations in a circumferential direction around an optical axis when viewed from an optical axis direction, or a holder configured to holding the base member on another member. Where first, second, and third axes pass through the optical axis and holders at the three locations, a first driver and a first guide member are disposed in a first area between the first axis and the second axis, and a second driver and a second guide member are disposed in a second area between the first axis and the third axis. The first driver and second driver are disposed in two areas that at least partially overlap each other in the optical axis direction.

The present disclosure discloses a telephoto optical imaging system and zoom camera apparatus. The telephoto optical imaging system includes, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power, a second lens having negative refractive power, an optical path turning prism, and a triangular prism. A total effective focal length F1 of the telephoto optical imaging system may satisfy F1>40 mm. The zoom camera apparatus includes the telephoto optical imaging system and a short-focus optical imaging system arranged in parallel with the telephoto optical imaging system. A total effective focal length F1 of the telephoto optical imaging system and a total effective focal length F2 of the short-focus optical imaging system satisfy F1/F2>5.

The zoom lens consists of, in order from an object side, a first lens group having a positive power, a second lens group having a negative power, a third lens group having a positive power, a fourth lens group having a negative power, and a fifth lens group having a positive power. An aperture diaphragm is disposed between a surface of the second lens group closest to an image side and a surface of the fourth lens group closest to the object side. The first lens group and the fifth lens group each consist of two or less lenses. A negative meniscus lens, which is convex toward the object side, is disposed to be closest to the object side of the second lens group. A negative meniscus lens, which is convex toward the image side, is disposed to be closest to the image side of the fourth lens group.

Provided is a zoom lens. The zoom lens includes a fixed lens group having a positive optical power, a first zoom lens group having a negative optical power, a second zoom lens group having a positive optical power, and a compensation lens group having a positive optical power which are sequentially arranged along an optical axis from an object side to an image side, where the first zoom lens group and the second zoom lens group are capable of reciprocating along the optical axis. The fixed lens group includes a first lens, and the first zoom lens group includes a second lens, a third lens, and a fourth lens which are sequentially arranged along the optical axis from the object side to the image side.

An optical system (LS) Includes lenses (L22,L23) satisfying the following conditional expressions,
νdLZ<35.0, and
0.702<θgFLZ+(0.00316×νdLZ),
where νdLZ: Abbe number of the lens with reference to d-line, and θgFLZ: a partial dispersion ratio of the lens, wherein θgFLZ is defined by the following expression,
θgFLZ−(ngLZ−nFLZ)/(nFLZ−nCLZ). wherein a refractive index of the lens with reference to g-line is ngLZ, a refractive index of the lens with reference to F-line is nFLZ, and a refractive index of the lens with reference to C-line is nCLZ.