| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a compact zoom lens or the like that is short in an entire length, and includes high optical performance.SOLUTION: A zoom lens has: a first lens group G1 that a negative refractive power; a second lens group G2 that has a positive refractive power; a third lens group G3 that has the negative refractive power; and a fourth lens group G4 that has the positive refractive power, in order from an object side. Upon zooming from a wide-angle end state to a telephoto-end state, the third lens group G3 moves along an optical axis, and a space between the first lens group G1 and the second lens group G2 varies, a space between the second lens group G2 and the third lens group G3 varies and a space between the third lens group G3 and the fourth lens group G4 varies, and the zoom lens satisfies a prescribed conditional expression.</p> |
