135mm lenses have long been popular as alternatives to the standard 85mm focal length when it comes to portrait photography, and Canon's EF 135mm f/2L was respected as one of the company's best lenses, offering excellent image quality, including deep contrast and colors and supplemented by reliable and quick autofocus. Now, its successor, the RF f/1.8 L IS USM, is here, and this excellent video review takes a look at the sort of performance and image quality you can expect from it in practice.