| 摘要 |
Disclosed is a rear conversion lens. The disclosed rear conversion lens is disposed on a figure of a master lens to change a focal distance, and is sequentially arranged from an object to the figure. The rear conversion lens comprises: a first lens having a positive refractive power; a second lens of which both sides are concave; a third lens having the positive refractive power; a fourth lens having the positive refractive power; and a fifth lens having a negative refractive power. The purpose of the present invention is to provide the rear conversion lens, provided to a rear side of the master lens to change the focal distance. |
