Hikvision 4-inch 2 MP 25X Powered by DarkFighter IR Analog Speed Dome (DS-2AE4225TI-D)- Max Resolution: 1920 × 1080, Frame Rate: 50Hz: 25fps @(1920 × 1080),60Hz: 30fps @(1920 × 1080), Zoom Speed Approx. 3.2 s (optical, wide to tele), Working Distance: 10 mm to 1500 mm (wide to tele), Movement Range (Pan): 360° endless, Movement Range (Tilt): -15° to 90° (auto flip), Tilt Speed: Tilt preset speed: 80°/s