Without eager to get too technical, APS-C sensors ‘multiply’ the focal size of your lenses. A lens that says ’35mm’ could provide you with an precise focal size of 50mm. The measurement of the sensor on an interchangeable lens camera may even dictate one thing referred to as the ‘crop factor’. Also, the bigger the sensor, the greater your capacity to ‘blur the background’ , but that is also highly dependent on the lens you attach to your camera.
