Sigma's stabilised APS-C superzoom for Canon — the 18-200mm OS HSM with quiet AF.
The Sigma 18-200mm f/3.5-6.3 DC OS HSM is a stabilised APS-C superzoom for Canon EF-S mount. Covering a 29-320mm equivalent range with optical stabilisation and HSM quiet autofocus, it represents a significant improvement over non-stabilised Sigma superzooms. The DC designation confirms APS-C-only coverage. Contemporary versions further refined the design.
Optical performance is typical of quality superzooms. Centre sharpness is respectable throughout the range. OS stabilisation provides approximately 4 stops of correction — essential at the telephoto end. HSM motor is fast and quiet with full-time manual override. The OS and HSM combination elevates this above budget superzooms from the same era.
Canon EF-S mount, APS-C. Filter thread is 62mm. Weight is approximately 490 grams — moderate for the range. Build quality is good. Several generations exist — the Contemporary version is the most refined. No weather sealing. The 29-320mm equivalent range covers the vast majority of everyday shooting situations in a single lens.
Available on the used market at reasonable prices. Check OS motor, zoom creep, and AF function. A solid one-lens travel solution for Canon APS-C shooters. The OS and HSM features make this significantly more capable than budget alternatives. The Contemporary version is preferred where available.