The Canon EF 100mm f/2.8L Macro IS USM was one of the most respected lenses in its DSLR line, offering top image quality, impressive image stabilization, and no-fuss autofocus, all at a very reasonable price that made it a top pick for wedding, macro, and portrait photographers. The new RF version promises a range of improvements and new features, and this excellent video review takes a look at if they are worth the price.