Patent ID: 7365910

Claim:
An electronic image pickup system, comprising: an optical-path bending optical system comprising in order from an object side thereof, a first lens group that is fixed during zooming, a second lens group that includes at least one lens component and moves in such a way that, upon zooming, a spacing between said first lens group and said second lens group varies, a third lens group that includes at least one lens component with a variable spacing between said second lens group and said third lens group upon zooming, a fourth lens group that includes at least one lens component with a variable spacing between said third lens group and said fourth lens group upon zooming, and a fifth lens group that includes at least one lens component with a variable spacing between said fourth lens group and said fifth lens group upon zooming, wherein said first lens group comprises at least one reflecting optical element for bending an optical path; and an electronic image pickup device located on an image side of said optical path-bending optical system; wherein said first lens group comprises, in order from the object side thereofor a 1-1st lens subgroup that includes said reflecting optical element and has negative refracting power, and a 1-2 nd lens subgroup that has positive refracting power.