ZOOM LENS AND PICKUP APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a zoom lens which has a high magnification but is compact and maintains high optical performances over the whole zooming range and also can achieve sufficiently wide angle photographing. Ž

SOLUTION: The zoom lens includes: a first lens group GR1 having a positive refracting power; a second lens group GR2 having a negative refracting power; a third lens group GR3 having a positive refracting power; and a fourth lens group GR4 having a positive refracting power, the first, second, third and fourth lens groups being disposed in order from the object side. The first lens group GR1 includes only a cemented lens including a positive lens L11 and a negative lens L12 cemented in order from the object side. The first lens group GR1 is configured so as to satisfy the conditional expression (1): 25<νd11-νd12<50 where νd11is the Abbe number of the positive lens of the first lens group and νd12is the Abbe number of the negative lens of the first lens group. Ž

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