XymnslotThe aperture ring turns smoothly instead of clicking into place as you turn it, which makes it much better for shooting video. It is weird how they word it almost as if it's going to reduce normal handheld camera shake, though.
QuasimofoTHANK YOU - I genuinely did not even consider video. I was completely at a loss how setting the aperture could induce visible camera shake when taking a photograph. Clearly, I am not a videographer!