Matsushita Electric Industrial Co., Ltd.

Shuusuke Ono

Kazutake Boku

Katsu Yamada

A zoom lens capable of correcting camera shake and being reduced in size and weight, comprising five groups of lenses respectively having positive, negative, positive, negative, positive refractive powers, the second lens group () varying power, the fifth lens group () adjusting focusing. The third lens group () is moved in a direction perpendicular to the optical axis when correcting camera shake. When lens power on the object side of a cemented lens in the first lens group () is &#x3c6;, lens power on the image plane side &#x3c6;, the Abbe number of a lens on the object side &#x3bd;, and the Abbe number of a lens on the image plane side &#x3bd;, the condition of the following Expression 82 is satisfied:&#x2212;75&#x3c;&#x3bd;&#x3bd;(&#x3c6;+&#x3c6;)/(&#x3c6;&#x3bd;+&#x3c6;&#x3bd;)&#x3c;&#x2212;50.Expression 82.

Growing community of inventors

Takatsuki, Japan

Shuusuke Ono