Camera using preview image to select exposure

The digital shooting device, comprising: Image sensor, for providing initial image sensor data terminal and image sensor, dataLens, and radiating field of the image sensor, aResistant control system, a responding terminal image sensitometry on field of adjusting image sensor; And the processor, a deals connected to the multiple types field to an initial image sensor data a field type, and responded deals with a terminal image sensor data in the field type.