Sigma's Art-line 24-105mm f/4 — same as ID 546, Canon EF mount version.
The Sigma 24-105mm f/4 DG OS HSM Art for Canon EF is the Canon mount variant of Sigma's first Art-line zoom. It offers Art-line optical quality with OS stabilisation as a direct competitor to the Canon EF 24-105mm f/4L IS USM at a lower price.
Optically very good — sharper than the Canon 24-105mm f/4L Mark I with well-controlled distortion and chromatic aberration. OS provides approximately 4 stops of stabilisation. HSM motor is fast and quiet with full-time manual override.
Canon EF mount with 82mm filter thread. Weighs 885g — heavier than the Canon L equivalent. No weather sealing. Minimum focus distance 45cm. USB dock compatible for AF fine-tuning and firmware. Art-line build quality.
Available used at mid-range prices. The 82mm filter thread and 885g weight are drawbacks. The Canon 24-105mm f/4L II closed the optical gap. Check for front/back focus — use USB dock. A solid Art-line standard zoom for Canon DSLR shooters.