Canon RF 24-105mm F4-7.1 IS STM

Reviewers find the centre sharp across the zoom range, best around 50mm, with soft corners at 24mm wide open and weaker results at 105mm and f/7.1. Vignetting is obvious wide open at both ends, barrel distortion and some fringing at 24mm need correction, and flare is a weakness when shooting toward the sun. Center Focus Macro gives 0.5x, but only the middle of the frame is sharp.

Autofocus is quick and quiet, with no real penalty from the slow aperture, and the stabiliser makes slow shutter speeds usable. The f/7.1 long end limits low-light work and background blur. The build is plastic but solid, there is no hood in the box, and switching between AF and MF is clumsy. Testers rate it very good value and a small, light partner for compact bodies.