CORRECTIVE OPTICAL SYSTEM, ATTACHMENT, WATERPROOF LENS PORT, WATERPROOF CAMERA CASE, OPTICAL SYSTEM, AND METHOD FOR MANUFACTURING CORRECTIVE OPTICAL SYSTEM

摘要

Provided is a corrective optical system capable of correcting aberrations when attached to an objective lens, as well as an attachment, a waterproof lens port, a waterproof camera case, an optical system, and a method for manufacturing a corrective optical system. A corrective optical system (CL) disposed on the object side of an objective lens (SL1) such as an imaging lens has a first lens component (L1) having a negative refractive power, and a second lens component (L2) having a positive refractive power, a surface of the second lens component (L2) closest to the object having a convex shape toward the object and satisfying predetermined conditions.