An image capturing terminal, comprising a first camera module, a second camera module and a processing module, wherein, the first camera module and the second camera module are each configured to frame concurrently the same scene and detect and analyze the contrast ratios of different images of the scene to find an image having a maximal contrast ratio, where a focus search range between a hyperfocal distance and a closest focusable distance is divided into a first focus sub-range and a second focus sub-range that do not overlap each other; the first camera module comprises a first lens, a first actuator and a first image sensor, and the second camera module comprises a second lens, a second actuator and a second image sensor, wherein the first image sensor has a higher resolution than the second image sensor; the first actuator is configured to drive the first lens to move relative to the first image sensor and the second actuator is configured to drive the second lens to move relative to the second image sensor, under the control of the processing module; the first actuator and the second actuator are closed-loop motors, wherein the processing module is configured to: control the first camera module to search for a focus in the first focus sub-range by driving the first lens relative to the first image sensor, and, at the same time, to control the second camera module to search for a focus in the second focus sub-range by driving the second lens relative to the second image sensor, wherein the focus is a position of the first lens or the second lens corresponding to a maximal contrast ratio of an image; receive focus information from the first camera module and the second camera module, and to selectively control the first camera module to capture an image at the focus in either the first focus sub-range or in the second focus sub-range on the basis of the focus information; wherein when the processing module receives the focus information from the first camera module and the second camera module, the processing module controls the first camera module to move directly to said focus on the basis of the focus information of the first camera module and the second camera module by controlling the first actuator to directly drive the first lens to move to said focus and controls the first camera module to capture an image. the first camera module and the second camera module are each configured to frame concurrently the same scene and detect and analyze the contrast ratios of different images of the scene to find an image having a maximal contrast ratio, where a focus search range between a hyperfocal distance and a closest focusable distance is divided into a first focus sub-range and a second focus sub-range that do not overlap each other; the first camera module comprises a first lens, a first actuator and a first image sensor, and the second camera module comprises a second lens, a second actuator and a second image sensor, wherein the first image sensor has a higher resolution than the second image sensor; the first actuator is configured to drive the first lens to move relative to the first image sensor and the second actuator is configured to drive the second lens to move relative to the second image sensor, under the control of the processing module; the first actuator and the second actuator are closed-loop motors, wherein the processing module is configured to: control the first camera module to search for a focus in the first focus sub-range by driving the first lens relative to the first image sensor, and, at the same time, to control the second camera module to search for a focus in the second focus sub-range by driving the second lens relative to the second image sensor, wherein the focus is a position of the first lens or the second lens corresponding to a maximal contrast ratio of an image; receive focus information from the first camera module and the second camera module, and to selectively control the first camera module to capture an image at the focus in either the first focus sub-range or in the second focus sub-range on the basis of the focus information; wherein control the first camera module to search for a focus in the first focus sub-range by driving the first lens relative to the first image sensor, and, at the same time, to control the second camera module to search for a focus in the second focus sub-range by driving the second lens relative to the second image sensor, wherein the focus is a position of the first lens or the second lens corresponding to a maximal contrast ratio of an image; receive focus information from the first camera module and the second camera module, and to selectively control the first camera module to capture an image at the focus in either the first focus sub-range or in the second focus sub-range on the basis of the focus information; wherein when the processing module receives the focus information from the first camera module and the second camera module, the processing module controls the first camera module to move directly to said focus on the basis of the focus information of the first camera module and the second camera module by controlling the first actuator to directly drive the first lens to move to said focus and controls the first camera module to capture an image.