For me I capped my ISO for night shots below ISO400.
Mode: Shutter-Priority
Exposure: 15
Aperture: f/8.0
Focal Length: 5.1 mm
Exposure: 0.00
ISO Speed: 80
Flash: Off
Mode: iA
Exposure: 0.01 sec (1/100)
Aperture: f/2.0
Focal Length: 5.1 mm
Exposure: 0.00
ISO Speed: 800
Flash: Off
ISO800...