Hello Hari. I'm going to by this lens so I already spend some time in shop with my hands on this lens. So what I can say? When I press halfway shutter button I hear Click and very silent motor noise, and then again click about half second after releasing shutter button.
Hope it helps. Gunars > really freaked > out when I first heard the noise it made. First I thought > that the USM > motor was broken given the noise but then realised it must be the IS > working (this is my first IS lens), specially when this happened only > when pressing the button half way down. Anyone else caught by suprise > with the IS? > * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
