Zoom lens system and image pickup apparatus including the same

Details Zoom lens system and image pickup apparatus including the same Zoom lens system and image pickup apparatus including the same

2007-05-22

2007-05-22

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S680000

Reexamination Certificate

active

11445068

ABSTRACT:
A zoom lens system includes a frontmost first lens unit having a negative optical power and a plurality of lens units on the rear side thereof. The first lens unit consists of a negative lens element. The zoom lens system includes five or less lens elements in total. The Abbe number of the negative lens element and the exit pupil distance of the zoom lens system at a wide-angle end are appropriately adjusted.

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