The Canon RF 24-105mm F4L IS USM is a fast zoom for the company's full-frame mirrorless system. This durable, weather-sealed lens features aspherical and UD lens elements as well as Air Sphere, Super Spectra and fluorine coatings. Its image stabilization system reduces shake by up to 5 stops and it focuses smoothly thanks to its Nano USM motor. It has a nine-blade aperture, 45cm (17.7") minimum focus distance and uses 77mm filters. There's also a customizable control ring that can serve a variety of purposes.