Attributes . 0.95 lux (F1.4, shutter speed 1/30 sec., smart shade control is off, 50IRE) 0.07 lux (F1.4, shutter speed 1/2 sec., smart shade control is off, 50IRE) 0.025 lux (F1.4, shutter speed 1/2 sec., smart shade control is on, 50IRE) . Names