| 摘要 |
The present invention provides a zoom lens system comprising, in the order from the object side, a first lens unit having positive refractive power, a second lens unit having positive refractive power and a third lens unit having negative refractive power, and adapted so as to perform zooming by varying the airspaces reserved between the lens units and permit photographing at an expanded tele position providing a focal length longer than that of the zoom lens system as a whole at the tele position by setting the airspace reserved between the second lens unit and the third lens unit at a width smaller than that at the tele position.
|
