(The combinations of the bases lenses)Any two of the base lenses can be combined via an interface(GCO-230101~231206) to build a tele centric lens system, for specific magnification. Every base lens can act as either the front lens or the back lens, according to the object size or image size. Interfaces and CCD adapters The interface setting between the base lens are listed in the table below. A stop is built in the interface and aligned to achieve the tele centric effect. The CCD adapters are provided along with the interface. Custom CCD adapters are also available on special request.