MACRO LENS SYSTEM AND A PICKUP DEVICE HAVING THE SAME, CAPABLE OF IMPLEMENTING CLOSE-UP PHOTOGRAPHY

摘要

PURPOSE: A macro lens system and a pickup device having the same are provided to help a user to easily carry the device without changing optical length in focusing.;CONSTITUTION: A macro lens system and a pickup device having the same comprises: a first lens group(G1) having a positive refractive power; a second lens group having a negative refractive power; a third lens group(G3) having a positive refractive power; a fourth lens group having a positive refractive power; and a fifth lens group having a negative refractive power.;COPYRIGHT KIPO 2011