Foot Pads 2in1 (20pcs) - Pain Relief, Antistress, Body Cleansing and Sleep Better - FDA Certified - 100% Organic Three meters  Matrix, Center-weighted 75/25, and Spot metering Three focusing modes  Single Servo AF, Continuous Servo AF, and Manual focus Automatic Balanced Fill-flash Top Shutter Speed of 1/8000 sec. Fast, built-in motor  up to 3.3 frames per sec.