1. A method for power management of a camera device with dual sensors including a color sensor and a monochromatic sensor, comprising: detecting a value of a light sensitivity setting for an image; in response to a first determination that the value is greater than a first threshold and less than a second threshold, operating the camera device with both the color sensor and the monochromatic sensor turned on wherein the second threshold is greater than the first threshold and marks a boundary between the color sensor's operating range for image capture and the dual sensors' operating range for image capture; and in response to a second determination that the value is greater than a second threshold, operating the camera device with both the color sensor and the monochromatic sensor turned on.