Freezing surfing action in low light

When light gets low in San Juan beach and moving subjects need to be frozen with fast shutter speeds,  the Canon 1D Mark IV delivers the detail with controlled noise at high ISO!

ISO 3200

Shooting info - San Juan beach, La Union, Philippines, February 26, 2011, 1D4 + 500 f4 + 1.4x TC, ISO 3200, 1/1250 sec, f/6.3, manual exposure in available light, 475B/516 support.

Shooting info - San Juan, La Union, Philippines, October 23, 2011, 1D4 + 500 f4 IS + 1.4x TC, 700 mm., f/7.1, 1/1600 sec, ISO 3200, manual exposure, 475B/516 support, AWB.

ISO 6400

Shooting info - San Juan beach, La Union, Philippines, February 26, 2011, 1D4 + 500 f4 + 1.4x TC, ISO 6400, 1/1600 sec, f/6.3, manual exposure in available light, 475B/516 support.

ISO 12,800

Shooting info - San Juan, La Union, Philippines, October 23, 2011, 1D4 + 500 f4 IS + 1.4x TC, 700 mm., f/6.3, 1/1600 sec, ISO 12800, manual exposure, 475B/516 support, AWB, uncropped full frame.