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MAIN FEATURES

Quality from the Inside Out

The extraordinary qualities of the A-1 start with its design. It is the first camera in the world in which all information, both input and output, is in the form of pulse signals, enabling it to be the first camera with a digital, rather than an analog, computer. It is the first camera to have a Pure-Integrated Injection Logic (Pure-PL), the most advanced type of logic circuitry yet produced by the electronics industry, which is so highly integrated that it is capable of processing many times the information possible with simple IC's. It is also the first camera in the world to have a program unit with programmable logic array (PLA) which makes sure that the camera receives all information and in correct order. In practical terms, all of this complex electronics circuitry boils down to the first camera which is capable of extremely precise and reliable automatic exposure in five different modes but which remains remarkably compact and easy to operate.

The use of such advanced technology is not limited to design alone. Building on the special 'production technology system it established with the design of the AE-1,

Canon has extended its use of computers and automation from automatic production of the main parts to at least partial automation in all facets of production including processing, assembly and in- spection. In this contribution to a new system of camera manufacture, Canon is able to offer greater precision at less expense.

Other benefits deriving from the design concept of the A-1 include greatly improved stability against great temperature changes and remarkably improved meter response. The A-1 will set AE exposure only a split second before shutter release.

Despite all of this electronic circuitry which would reasonably require a great deal of power, the A-1 requires only one small battery which normally lasts about one year. Every part of the A-1, from its sequence circuitry, where the power is sequentially switched on and off, to its Pure-I2 L and combination magnet, is designed to conserve power.

Five AE Modes and Manual Override

Besides five AE modes which cover all forms of photography, easy override of the A-1's

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