Zoom lens system

A zoom lens system comprising a positive first lens group, and a subsequent rear lens group provided subsequently behind said first lens group, in that order from the object side,

• wherein said first lens group includes at least one positive single lens element, a negative meniscus lens element having a convex surface on the object side, and at least one positive lens element, in that order from the object side,
• wherein a distance between said first lens group and said subsequent rear lens group increases upon zooming from the short focal length extremity to the long focal length extremity, and
• wherein the following conditions (1) and (2) are satisfied:
• fG1/fn<−1.50 (1), and
• 65<νpave (2), wherein
• fG1 designates the focal length of the first lens group,
• fn designates the focal length of the negative meniscus lens element that is provided within the first lens group, and
• νpave designates the average value of the Abbe numbers with respect to the d-line of the positive lens elements that are provided within the first lens group.