Patent ID: 7679835

Claim:
A camera apparatus comprising, a zoom lens, said zoom lens comprising in order from an object side: a first lens band having a positive focal length; a second lens band having a negative focal length; at least third to fourth lens bands having positive focal lengths; and a focus lens band arranged on the image side most and having a positive focal length; wherein, said second lens band smoothly moves toward the third lens band, and said fourth lens band moves toward a long focal point end in the vicinity of the third lens band when magnification is performed from short to long focal point ends; wherein, focusing is performed by only moving said focus lens band; wherein said first lens band is immobile when said magnification is performed; and wherein a distance (D 1W ) between the first and second lens bands in the short focal point end arrangement, a distance (D 1T ) between the first and second lens bands in the long focal point end arrangement, a distance (D 3W ) between the third and fourth lens bands in the short focal point end arrangement and a distance (D 3T ) between the third and fourth lens bands in the long focal point end arrangement substantially meet the following inequality: ( D 3W −D 3T )/( D 1T −D 1W )>0.3.