| 摘要 |
Disclosed is a zoom lens which can obtain favorable optical performance from a wide angle end to a telephoto end, and further, enables miniaturization. The zoom lens, in sequence from an object side, comprises: a first positive lens group; a second negative lens group; a plurality of lens groups; and a follow-up group having positive refractive power, thereby shortening the whole length of the zoom lens by enabling an upper surface lens group arranged in the uppermost side to have variable reaction. |
