18.0 Megapixel CMOS (APS-C) image sensor and high-performance DIGIC 4+ Image Processor for excellent speed and quality.. ISO 100-6400 (expandable to H: 12800) for shooting from bright light to low light.. Focal length and maximum aperture: 55-250mm 1:4-5.6. Lens construction: 15 elements in 12 groups. Diagonal angle of view: 27 Degree 50 ft. - 6 Degree 15 ft.