I'm currently using a brand new Canon 100mm f/2.8L macro lens. I noticed that when IS is enabled and I press the button mid-air (no shoot), I hear a little noise. Is it the image stabilizer? With IS ...
I've a Canon 600D with Canon EF 25-105mm F/4 USM L lens. When I half press the shutter I can hear the US motor sound trying to focus on my subject, however I hear another sound, it's lower than the ...