5-digit ISO settings are fun, but for me the challenge is to shoot available light in EV0 conditions with a 3-digit ISO, sometimes with an F/4 zoom.
35mm F/2, 1/80th, ISO320. Just a warm-up shot.
50mm F/1.8, ISO320 1/10th of a second handheld. Timed to catch one of the flashes from the nightclub's pair of 1000W strobes.
17-40L @ 22mm, F/4, ISO800, 1/5th of a second handheld.
35mm F/2, ISO200, 1/60th. Kind of ironic that the shot I'm posting with the fastest shutter speed has the most motion blur.
17-40L @ 22mm, F/4, ISO800, 1/5th of a second handheld.
17-40L @ 22mm, F/4, ISO800, 1/6th of a second handheld.
17-40L @ 17mm, F/4, ISO500, 1/0th of a second handheld. This shot was difficult for two reasons: besides keeping the camera steady, I had to capture the DJ while he was holding relatively still.
I could go on, but you get the point.