ZOOM LENS AND OPTICAL DEVICE HAVING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a compact zoom lens excellently correcting color aberration in a remote photographing region and having excellent optical performance. SOLUTION: The zoom lens is composed of a plurality of lens groups G1-G4. The plurality of the lens groups have at least three positive refractive power lens groups G1, G3, G4. When an average refractive index of the positive lenses of at least three positive refractive power lens groups is Np, and an average Abbe number isνp, conditions: 1.440