The PCB is standard FR4 material PCB.
The Lens material varies depending on the version of the lens used. The standard 56-degree lens has plastic lens elements which are made of PMMA plastic, whereas the 116-degree lens is all glass construction.
The lens barrel and holder are made of ABS plastic.
The CMOS sensor on the PCB is a PLCC package,. with a cover glass on top of the sensor surface.