Canon RF 24-105mm f/4 L IS USM Review

The Canon RF 24-105mm f/4 L IS USM is a versatile standard zoom designed for the RF mount system, covering wide angle through short telephoto with a constant f/4 aperture. This is Canon's go-to workhorse zoom for full-frame mirrorless shooters, balancing range, build quality, and optical performance in a relatively compact 700-gram package. It features Canon's Nano USM autofocus motor for smooth, near-silent focusing, five-stop image stabilization, and weather sealing throughout.

The lens includes 18 elements in 14 groups with Super Spectra Coating to minimize flare and ghosting. Its 0.24x maximum magnification and close 0.45-meter minimum focus distance give it decent close-up capability for a standard zoom. The customizable control ring (a hallmark of RF lenses) allows quick adjustment of exposure parameters, and the nine rounded aperture blades produce pleasing bokeh. At $1,299, it sits squarely in the professional L-series lineup, aimed at creators who need reliable all-day performance without the bulk and cost of faster f/2.8 alternatives.