Sigma 10-20mm f/3.5 EX DC HSM Lens
The Sigma 10-20mm f/3.5 is a 10–20mm f/3.5 lens designed for Sigma SA mount cameras. Used copies start from $122.06 on GearFocus, with buyer protection on every purchase.
Sigma 10-20mm f/3.5 EX DC HSM Lens
Used Sigma 10-20mm f/3.5 Listings on GearFocus
Lens Overview — Sigma 10-20mm f/3.5
Key Features — Sigma 10-20mm f/3.5
10-20mm Ultra-Wide Zoom: Covers an ultra-wide focal range equivalent to approximately 16-32mm on a full-frame camera, making it well-suited for landscapes, architecture, and interior photography on APS-C bodies.
Constant f/3.5 Aperture: Maintains a fixed maximum aperture of f/3.5 throughout the entire zoom range, ensuring consistent exposure without adjustment when zooming.
APS-C Exclusive Design: Engineered specifically for APS-C format DSLRs, optimizing image quality and coverage for crop-sensor cameras rather than full-frame bodies.
HSM Autofocus Motor: Hyper Sonic Motor delivers fast, quiet autofocus operation and allows full-time manual focus override without switching modes.
EX-Series Build Quality: Sigma's EX designation indicates a higher-grade construction standard with a more robust, professional-grade finish and tighter tolerances.
82mm Filter Thread: Large 82mm front element thread accommodates wide-angle filters, though buyers should note this is a larger, less common filter size.
Lens Specifications — Sigma 10-20mm f/3.5
| Spec | Detail |
|---|---|
| Use Cases | Travel |
| Lens Type | Ultra Wide-Angle |
| Format | APS-C |
| Zoom/Prime | Zoom |
| Focal Length | 10–20mm |
| Maximum Aperture | f/3.5 |
| Camera System | DSLR |
| Lens Mount | Sigma SA |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 82mm |
Description — Sigma 10-20mm f/3.5
The Sigma 10-20mm f/3.5 EX DC HSM is an ultra-wide-angle zoom lens engineered for APS-C DSLR cameras, covering a focal length range of 10mm to 20mm. One of its key practical advantages is the constant f/3.5 maximum aperture, which stays fixed no matter where you are in the zoom range — a genuine benefit for maintaining consistent exposure without adjusting settings mid-shoot. Mounted via the Sigma SA lens mount, this lens integrates directly into Sigma's own DSLR ecosystem.
It supports both autofocus and manual focus, providing flexibility for different shooting styles and subjects. The 82mm filter thread accommodates standard large-format filters for creative or protective use. At 520g, the lens offers a solid build without being excessively heavy for an ultra-wide zoom.
One consideration for buyers is that image stabilization is not featured, so stable support is advisable when shooting in challenging light conditions.
Pros — Sigma 10-20mm f/3.5
- ✓Constant f/3.5 maximum aperture across the full 10-20mm zoom range ensures consistent exposure
- ✓Ultra-wide 10mm minimum focal length provides expansive coverage for APS-C shooters
- ✓Supports both autofocus and manual focus, offering flexibility in operation
Cons — Sigma 10-20mm f/3.5
- ✗No image stabilization, which can be limiting in handheld low-light situations
- ✗Exclusively available in Sigma SA mount, limiting compatibility to Sigma's own DSLR system
- ✗APS-C-only format means it cannot be used on full-frame bodies without vignetting concerns
Reviews — Sigma 10-20mm f/3.5
Videos — Sigma 10-20mm f/3.5
Sigma 10-20mm f/3.5 EX DC HSM lens review with samples — Christopher Frost