Tamron 45mm f/1.8 Di VC USD SP
Most people tend to think of image stabilization as being mainly for telephoto lenses. While it's true that their longer focal lengths tend to magnify the effects of camera shake, image stabilization can provide a very useful assist at wider angle focal lengths as well; anyone who's ever tried to blur the image of a waterfall, while keeping the surrounding landscape tack-sharp knows exactly what I'm talking about.
|Mouse over this chart to show results with IS activated.
The Tamron 45mm f/1.8 VC's image stabilization system works quite well, providing about 2.5 stops or so of correction. We were even able to get about 40% of "good" quality images at a 1/2s shutter speed.
IS systems tend to provide more benefit to less-stable shooters than very steady ones, so most users will see the same or greater amounts of shake reduction as we measured here. You can read more about our IS test methodology here: SLRgear IS Test Methodology, v2.