20.2 megapixel Full-frame sensor | ISO 100-25600, expandable to 102400 (expandable range L:50, H1:51200, H2:102400) | Built-in WiFi and GPS High resolution 20.2-megapixel images of superb quality and detail are attained from Canon's cutting-edge full-frame CMOS sensor technology. New photodiode construction, gapless microlens array and on-chip noise reduction circuitry on the CMOS keep image data clean and clear even at high ISO settings and long exposures, so your photographic vision is never compromised.