Sigma 100-400mm f/5-6.3 DG DN OS Contemporary Lens
The Sigma 100-400mm f/5-6.3 DG DN OS is a 100–400mm f/5 lens designed for Sony E, L Mount Alliance mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Sigma 100-400mm f/5-6.3 DG DN OS Contemporary Lens
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Lens Overview — Sigma 100-400mm f/5-6.3 DG DN OS
Key Features — Sigma 100-400mm f/5-6.3 DG DN OS
100-400mm Focal Range: Covers a versatile telephoto range in a single lens, suitable for wildlife, sports, and distant subjects.
Full-Frame Mirrorless Design: Built specifically for mirrorless systems with full-frame coverage, eliminating vignetting on Sony E and L-Mount full-frame bodies.
Sony E & L-Mount Compatible: Available in two mount versions, covering major mirrorless ecosystems including Sony, Leica, Panasonic, and Sigma bodies.
Built-In Optical Stabilization: Hardware-based image stabilization helps reduce camera shake at longer focal lengths where blur is most pronounced.
f/5-6.3 Maximum Aperture: Variable aperture is typical for this zoom range and keeps the lens size and weight manageable relative to its reach.
Autofocus & Manual Focus: Supports both AF and MF modes, giving photographers flexibility across fast-action and deliberate shooting situations.
Lens Specifications — Sigma 100-400mm f/5-6.3 DG DN OS
| Spec | Detail |
|---|---|
| Use Cases | Wildlife, Birding, Sports, Travel |
| Lens Type | Telephoto |
| Format | Full Frame |
| Zoom/Prime | Zoom |
| Focal Length | 100–400mm |
| Maximum Aperture | f/5 |
| Camera System | Mirrorless |
| Lens Mount | Sony E, L Mount Alliance |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | Optical |
| Filter Thread | 67mm |
Description — Sigma 100-400mm f/5-6.3 DG DN OS
The Sigma 100-400mm f/5-6.3 DG DN OS Contemporary is a telephoto zoom lens built for mirrorless camera systems, offering a focal range of 100mm to 400mm and designed to cover a full-frame image circle. It is available in Sony E and L-Mount versions, making it accessible to photographers across two of the leading mirrorless platforms. The lens includes optical image stabilization, a hardware-level feature that works to reduce the effects of camera shake during handheld shooting at longer focal lengths.
The maximum aperture of f/5 at the wide end provides a reasonable starting point for a zoom of this reach. A 67mm filter thread makes it straightforward to attach polarizers, ND filters, or other accessories. Both autofocus and manual focus are supported, giving shooters control over how they engage with moving or static subjects.
At 1,135g, the lens has a solid build presence appropriate for a zoom covering this focal range.
Pros — Sigma 100-400mm f/5-6.3 DG DN OS
- ✓Wide focal range from 100mm to 400mm (minFocalLength: 100, maxFocalLength: 400) covers substantial telephoto reach in a single lens
- ✓Available in both Sony E and L-Mount (mount.lens), making it compatible with two major mirrorless ecosystems
- ✓Built-in optical image stabilization (imageStabilization: Optical) helps counteract camera shake at longer focal lengths
Cons — Sigma 100-400mm f/5-6.3 DG DN OS
- ✗Variable maximum aperture of f/5-6.3 (maximumAperture: 5) means light gathering is limited, especially at the 400mm end
- ✗At 1,135g (weight: 1135g), this lens is on the heavier side and may require additional support for handheld shooting
- ✗Not compatible with DSLR systems (cameraSystem: Mirrorless) — users coming from DSLR platforms cannot use this lens without a mirrorless body