| 摘要 |
PURPOSE: Compact zoom optics is provided to compensate the image vibration due to hand shaking by moving a lens with a positive refractive power to intersection of an optical shaft. CONSTITUTION: A first lens group(G1) has a positive refractive power and has an optical path conversion member varying the optical axial. A second lens group(G2) has a negative refractive power and moves to an object side when increasing and deceasing magnification from the object side to the upper. A third lens group(G3) and a fourth lens group(G4) have a positive refractive power. A fifth lens group(G5) has a positive refractive power. |
