Patent ID: 11953662
Assignee: RICOH COMPANY, LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. The zoom lens according to claim 1,
wherein the second lens group includes:
a first vibration-isolating lens group; and
a second vibration-isolating lens group closer to an image than the first vibration-isolating lens group,
each of the first vibration-isolating lens group and the second vibration-isolating lens group is movable in the direction perpendicular to the optical axis to correct image blurring, and
wherein conditional expression (17) below is satisfied:

0.3<|fV1/|fV2<2.5  (17)

where
fV1 denotes a focal length of the first vibration-isolating lens group, and
fV2 denotes a focal length of the second vibration-isolating lens group.