High-resolution camera shooting objective lens optical system

The utility model relates to a high-resolution camera shooting objective lens optical system, which comprises a lens front group, a diaphragm and a lens rear group which are sequentially arranged along an optical axis from the direction of incident light, the front lens group comprises a doublet lens consisting of a first lens with biconvex positive focal power, a second lens with biconvex positive focal power and a third lens with biconcave negative focal power, and a fourth lens with plano-convex negative focal power, which are arranged in sequence; and the lens rear group comprises a fifth lens with biconvex positive focal power and a sixth lens with biconcave negative focal power which are arranged in sequence. According to the system, optical passive athermalization design is carried out, and clear imaging can be carried out within the temperature range of-20 DEG C to 60 DEG C; all the lenses are glass spherical lenses, the optical property is stable, and the processing and detection process is mature. T