| 摘要 |
A zoom lens system for compact cameras comprising, in order from the object side, a first negative lens unit and a second positive lens unit, and configured to be zoomed from a wide position to a teleposition by moving the lens units toward the object side while narrowing the airspace reserved between the two lens units; the first lens unit comprising a first negative subunit and a second positive subunit, the first subunit comprising a biconcave lens component having a radius of curvature on the image side smaller than that on the object side, and a negative meniscus lens component having a convex surface on the object side, the second lens unit comprising, in order from the object side, a positive lens component and a negative lens component.
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