It might be an idea to explain the difference between Mode 1 & 2.
Sure.....
Mode one is for still photographs, so the stabliser is functional both horizontally and vertically......mode two is for panning, i.e. the stabliliser only functions on the horizontal or vertical plane (whichever way you're panning it)
I believe that some of the newer canon lenses have more modes than this, so I can't be sure on all of them
.mic
Exactly what I was getting at. In Mode 2 the IS works in one plane only so if you have a steady hand it's not strictly necessary. The most common cause of blurring in the vertical plane is accidentally moving the camera when pressing the shutter. This is a bad habit that can be overcome with practice. I believe some IS lenses have only one mode (IS is either ON or OFF) so would be no benefit for the panned type of shot in your example.
I think this is worth covering when giving advice as I didn't appreciate it until after spending a lot of money on an IS lens & reading the instructions.













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