1. A device comprising: an image sensing arrangement arranged to produce an image including a lens, an image sensor comprising pixels, an infrared filter arrangement in front of the image sensor so that some of the pixels of the sensor are exposed to all wavelengths and some of the pixels of the sensor are blocked from infrared wavelengths such that the image sensing arrangement is configured to form an infrared image by utilizing the pixels of the image sensor that may be exposed to all wavelengths and form an image using visible light by utilizing the pixels of the image sensor that are blocked from infrared wavelengths, wherein the pixels of the image sensor are grouped into 2×2 pixel subarrays and every pixel in every other subarray is blocked from infrared wavelengths, and a memory for storing infrared images and images formed using visible light.