Patent ID: 8548316

Claim:
A method of controlling light intensity of a camera, which comprises: generating a code value for correcting a positional error of the camera to store the code value in a memory; performing an auto-focusing function through a code value, to which the code value for correcting the positional error is added, to measure a distance to a subject; and adjusting light intensity of a flash according to the distance to the subject, wherein generating a code value for correcting a positional error of the camera to store the code value in a memory comprises performing the auto-focusing function in a state in which the camera is in a horizontal posture to measure a current value applied to drive a voice coil actuator (VCA) of the camera, performing the auto-focusing function in a state in which the camera is in a vertical posture to measure a current value applied to drive the VCA of the camera, and obtaining a current value of the positional error of the camera, and then, converting the current value of the positional error into a code value to store the code value in the memory.