Nikon Corporation

Akino Kondo

Masashi Yamashita

This optical system (OL) has a first lens group (G) having positive refractory power, a second lens group (G), a third lens group (G), and a fourth lens group (G) which are aligned in order from an object side along an optical axis, wherein when focused from an infinity object to a short-distance object, the second lens group (G) and the third lens group (G) move in mutually different trajectories along the optical axis, and the second lens group (G) and the third lens group (G) are composed of three or less lenses in total.

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Yokohama, Japan

Akino Kondo