Canon has developed a new global shutter type CMOS sensor for its range of video cameras that promises better dynamic range. Global shutters differ from rolling shutters by having all the pixels on the sensor capture the image at once instead of sequentially from top to bottom. Due to this moving images appear stationary and without distortion on a global shutter camera, whereas a straight vertical moving object will appear bent on a rolling shutter due to the moving between the top and bottom pixels on the sensor capturing the image. This makes global shutter sensors far superior to...
Source: http://www.gsmarena.com/canon_introduced_new_global_shutter_cmos_sensor_with_improved_dynamic_range-news-20273.php