Canon's budget full-frame standard zoom — 24-105mm with IS and STM motor but slow variable aperture.
The Canon EF 24-105mm f/3.5-5.6 IS STM was released in 2014 as the kit lens for the EOS 7D Mark II, distinct from the f/4L IS USM. Seventeen elements in 13 groups including aspherical and UD elements. Seven rounded aperture blades. STM autofocus. 4-stop IS. 77mm filter thread. At 525g. 0.40m MFD.
The optical design uses 17 elements in 13 groups (2 aspherical + 1 UD elements). Seven rounded aperture blades. The 77mm filter thread. At 525g the lens is moderate. Minimum focus distance of 0.40m. STM provides quiet, smooth AF suitable for video. 4-stop IS (Canon-rated). Variable aperture from f/3.5 at 24mm to f/5.6 at 105mm. Full-frame coverage.
The f/3.5-5.6 aperture and non-L designation distinguish this 24-105mm from the canonical f/4L IS USM: the STM version is a consumer kit lens with variable aperture and STM motor, while the L version offers constant f/4 and ring USM. The STM motor makes this lens well-suited to video use on EOS bodies with dual-pixel AF, providing smooth, quiet continuous AF during recording.
On the used market the Canon EF 24-105mm f/3.5-5.6 IS STM is affordable as a consumer full-frame standard zoom. Condition checks: STM AF response, IS engagement, 77mm front element for marks, zoom ring smoothness. Compatible with all Canon EOS EF and EF-S bodies; on RF bodies via EF-RF adapter.