The Canon RF 24-105mm f/4L IS USM is the quintessential all-purpose zoom for the EOS R system, serving as the primary workhorse for many professional and enthusiast photographers. As part of Canon’s prestigious L-series, it offers a versatile focal range that covers everything from wide-angle landscapes to short-telephoto portraits. It was one of the first lenses released for the RF mount, setting a high standard for what users could expect from the mirrorless ecosystem.
Optically, the lens delivers impressive sharpness across the entire zoom range, even when shooting wide open at f/4. The inclusion of Air Sphere Coating (ASC) significantly reduces flare and ghosting, while the 9-blade circular aperture produces smooth and pleasing bokeh in out-of-focus areas. While there is some minor distortion at the 24mm end, it is easily corrected in-camera or through post-processing, leaving users with clean, high-contrast images that exhibit the color rendering typical of high-end Canon glass.
Built to survive the rigors of professional use, the lens features robust weather sealing and a fluorine coating on the front and rear elements to repel water and oil. Autofocus is handled by Canon’s Nano USM motor, which provides incredibly fast and nearly silent focusing—making it an ideal choice for both still photography and video applications. The addition of a customizable Control Ring allows for quick adjustments to exposure settings like ISO or aperture directly from the lens barrel.
In conclusion, the Canon RF 24-105mm f/4L IS USM is arguably the most practical lens in the RF lineup for those who need a single-lens solution for travel, events, or daily shooting. While it may not offer the extreme shallow depth of field of its f/2.8 counterparts, its lighter weight and built-in Image Stabilization make it a more versatile companion for handheld work. It is the perfect investment for any EOS R user looking for a reliable, high-performing standard zoom.