1. A method of displaying visible-light (VL) images and/or infrared (IR) images, the method comprising: providing a camera having a VL camera module, an IR camera module, and a display, the VL camera module having a first field of view (FOV), the IR camera module having a second FOV different from the first FOV causing a parallax error; focusing the IR camera module on a target to create a focused second FOV; the focusing of the IR camera module registering at least a portion of the first FOV with the focused second FOV to correct the parallax error; and displaying an image of the registered first FOV, or the focused second FOV, or a blended image of the registered first FOV and the focused second FOV.