Budget Sigma ultra-wide at 10-20mm for APS-C, dramatic 16mm equivalent perspectives at affordable pricing.
The Sigma 10-20mm f/4-5.6 DC is the earlier version of Sigma's APS-C ultra-wide zoom — before the HSM autofocus motor variant. Available in multiple mounts.
10-20mm focal length. f/4-5.6 aperture. DC = APS-C coverage. Multiple mount options.
The 10-20mm f/4-5.6 DC (without HSM) uses an older AF mechanism requiring a body with AF motor for autofocus on some mounts. Optically similar to the DC HSM (id 3194) but with older AF technology.
On the used market the Sigma 10-20mm DC is a budget APS-C ultra-wide. Condition checks: AF mechanism, ultra-wide elements. Verify mount variant.