The Canon 300mm f/2.8L IS II is a lighter, sharper, faster successor to the Canon 300mm f/2.8L IS. This super telephoto lens is about 13% lighter than the previous generation with more parts made of magnesium alloy. Fluorite lens elements deliver superior image quality and fluorine coating on front and rear lens surfaces allow for easy cleaning of fingerprints and dirt. The lens includes three stabilising modes with the third mode giving a shutter speed effect equal to four stops faster than non-IS mode and a Power Focus mode that allows for smooth focus adjustment while shooting video.