Nov 9, 2005, 03:28
is it true that sigma's IR AF assist beam only covers the center AF sensor?
Canon Digital Rebel XT w/ Grip // Canon 17 - 40 L // Tamron 28 - 70 2.8 XR Di LD Aspherical [IF] // Canon EF 50mm f/1.8 II // Canon Speedlite 580 EX// Sigma EF 500 DG Super EO-ETTL // Sandisk Ultra 512mb // Sandisk 512