| 摘要 |
Provided is a zoom lens system, sequentially arranged in an order from an object side to an image side, including: a first lens group having a positive refractive power; a second lens group having a negative refractive power; an aperture stop; a third lens group having a positive refractive power; a fourth lens group having a positive refractive power; and a fifth lens group having a positive refractive power, wherein each of the second lens group, the third lens group, and the fourth lens group has an anomalous dispersion ΔPct of −0.1 or less. |
| 主权项 |
1. A zoom lens system, sequentially arranged in an order from an object side to an image side, comprising:
a first lens group having a positive refractive power; a second lens group having a negative refractive power; an aperture stop; a third lens group having a positive refractive power; a fourth lens group having a positive refractive power; and a fifth lens group having a positive refractive power, wherein each of the second lens group, the third lens group, and the fourth lens group has an anomalous dispersion ΔPct of −0.1 or less. |
