CCTV lens, an old saying, called circuit closed TV, it lasts over tens of years business at primary surveillance and plays an important role for business and daily life;
Now, CCTV lens becomes a new speak, its a milestone of nowadays investigation, patrol, study & smart home.
CCTV lens borned from resolution CIF, QCIF, Megapixel, 720P, 1080P, 3Megapixel, 5Megapixel, 8Megapixel or even 12Megapixel, 20Megapixel etc. with sensor format from 1/4 to 1/3, 1/2.7", 1/2.5", 1/2", 1/1.8", 2/3", 1" etc.
CCTV lens plays an important role at daily life for surveillance and for safety.

Nowadays, we called CCTV lens as Megapixel lenses because of higher resolution camera applicated, but most of engineers or old guys always like to say CCTV lens to instead of this type of lens.
CCTV lens is a saying of several generation, including me, im involved in CCTV lens from 2001 till now, 20 years experiences from CCTV lens to FA machine vision lens , to telecentric lens and to linear zoom lens, motorized zoom lens ....

Well, yes, now is a history of CCTV lens of analog type, instead is 4K or 6K or higher resolution for surveillance or ITS etc., but we will always call this lens a CCTV lens or megapixel lenses.

Say goodbye to CCTV lens and say hellow to CCTV lens; it paves a way for megapixel lenses or even 150Megapixel line scan lens for machine vsion.