Canon EF 24-105mm f/4L IS USM Lens

Canon EF 24-105mm f/4L IS USM Lens, came with canon 5d as part of bundle. Very sharp at 24 and 105mm, Quick focus in low light, Main lens I use at weddings. Had the lens 3 years, used in bright sun, rain and snow, at the beach and up the mountains. Not one problem to date. If you are after a very sharp all round lens then this is the one I would recommend. Image stabilization has allowed me to shoot hand held at 1/15th of a second with pin sharp results.
When used on the Canon IDs range of cameras it is Weather proof, allowing me to photograph in the rain or a sand storm. Even though this lens has been used daily for 3 years, and thrown about a bit it still looks new.
Switching from manual to auto focus or switching the IS on and off is very easy without removing the camera from your eye.
Manual focus is very smooth and doesn t slip when pointing lens up or down.