http://www.sony.co.uk/electronics/interchangeable-lens-cameras/ilce-7sm2 The α7S II has High-speed, high-precision Fast Intelligent AF in light as low as EV -4. Thanks to the 12.2-megapixel*1 Exmor CMOS sensor's clear, noiseless image depiction, Fast Intelligent AF in the α7S II easily detects contrast and works unconventionally fast and accurately even when shooting at night or in dark environments with light as low as EV -4. AF speed is also now even twice faster than the previous model* when shooting movies. *In comparison with the α7S in shooting Full HD movies. Subscribe to Sony Europe's Channel on YouTube for great content and new product information: http://www.youtube.com/subscription_center?add_user=SonyEuro