| 摘要 |
<p>Provided is a zoom lens including, in order from an object side to an image side: a positive first lens unit without moving for zooming; a negative second lens unit moving during zooming; a negative third lens unit moving during zooming; a positive fourth lens unit moving during zooming; and a positive fifth lens unit without moving for zooming, in which the second lens unit moves to the image side during zooming from a wide angle end to a telephoto end, while the third lens unit moves along a locus convex toward the object side, and, when fw denotes a focal length of the entire system at the wide angle end, Z a zoom ratio, and fz a focal length of the entire system at a zoom position where the third lens unit is in the position closest to the object side, the following conditional expression is satisfied: fw×Z 0.07 <fz<fw×Z 0.5 .</p> |
