Canon recently has announced the new ME20F-SH camera, this special camera is capable of shooting at ISO 4,000,000 which is 10 times than the recently announced Sony a7SII.
Canon Japan has posted the sample video of Canon ME20F-SH camera. You can watch the video from the Canon Japan website
The price of ME20F-SH camera is $30,000, and will be available in December, 2015.
Canon ME20F-SH Sample Movie (ISO up to 4,000,000)
Canon ME20F-SH camera has a super-sensitive full-HD 35mm full-frame CMOS sensor inside a small form factor body. The new camera can record color images in near-complete darkness, while its cubic chassis can be placed unobtrusively on set or in the wild. While the sensor is only 2.2 megapixels (effective) in resolution, each pixel measures 19 microns, making it more than 7.5 times larger than an equivalent 18.1 megapixel 35mm full-frame sensor. This large pixel size allows the sensor to gather much more light in all situations. This helps images taken in low-light situations maintain a low noise floor for cleaner and more vivid video.