A good wide angle lens can be tremendously useful for a range of photography genres, and Canon shooters have a few options from which to choose, with varying image quality, specs, and, of course, price. The excellent video comparison takes a look at three such lenses, the RF 14-35mm f/4 L IS USM, RF 15-35mm f/2.8 L IS USM, and RF 16mm f/2.8 STM.