The second I hit the image-stabilization button, the shakiness of the bird I was following disappeared and I was able to follow the loon as it flew above the surface of the water for over 100 feet. The Image-stabilization feature is a great way to address the issue of shakiness from hand tremors that often appears in binoculars with a magnification power of 10. Images in the Canon IS of objects nearly a mile away are incredibly crisp and clear, and direct sunlight does not negatively impact viewing at all.
There were a few issues that did arise while testing. It took quite a bit of time and care to adjust the binoculars to fit comfortably to various testers' faces. Another issue related to comfort is that the eye pieces are quite large and uncomfortable to look through. As great as the image-stabilization feature is on the Canon IS Ultra Compact, it does add a significant cost to the product as well, to the tune of $549.99. We are also incredibly wary of products that require batteries to work, while any comparable model performs just as well without them.