It has an elastic loop that fits the SLR lens barrel and has an adhesive button that attaches to the lens cap to free up both hands for any photographer. The cap remains connected while you shoot and can be easily reattached when finished snapping.
The Canon Powershot SX10IS 10MP Digital Camera with 20x Wide Angle Optical Image Stabilized Zoom I recently purchased has at least two minor design flaws. First, the lens cap isn't attached to the camera. This would be less of a problem if, second, the little doobies - that's the technical term - on the sides of the cap that one finger-squeezes to release it from the lens were more pronounced (such as the ones on my venerable Canon-AE1 SLR),..