DISTANCE METER AND AN APPARATUS HAVING A DISTANCE METER

An apparatus includes a detecting device provided with a first sensor having an arrayed pixels and a second sensor having an arrayed pixels, a selector for selecting predetermined pixels within the first and second sensors, a controller for controlling the selector so that, in a first situation, selected pixels of the first sensor is fixed and selected pixels of the second sensor is shifted by one pixel, and, in a subsequent second situation, selected pixels of the second sensor is fixed and selected pixels of the first sensor is shifted by one pixel, and a calculator for calculating correlation based on the outputs from the selected pixels, and calculates an object distance based on the calculated correlation.