Importance

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Abstract

A compact two-group zoom lens, wherein zooming is accomplished by changing the distance between the two lens groups. In order from the object side, the first lens group G1 is of positive refracting power and includes a negative meniscus lens element L.sub.1 with its concave surface on the object side, a positive meniscus lens element L.sub.2 made of plastic having two aspherical surfaces with its convex surface on the object side, and a biconvex lens element L.sub.3 having different surface curvatures, with its surface of stronger curvature on the image side. The second lens group G2 includes a positive meniscus lens element L.sub.4 that has two aspherical surfaces with its concave surface on the object side, and a negative meniscus lens element L.sub.5 with its concave surface on the object side. It is preferable that lens element L.sub.4 has an aspherical surface of positive refracting power and lens element L.sub.2 has an aspherical surface of negative refracting power. Also, it is preferable that lens elements L.sub.2 and L.sub.4 are formed with an acrylic-system resin. Furthermore, the following conditions are satisfied: 1.4

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First Claim