Sigma AF 50-500mm F4.5-6.3 DG OS APO HSM Lens
The Sigma 50-500mm f/4.5-6.3 is a 50–500mm f/4.5 lens designed for Canon EF, Nikon F, Sony A, Pentax K, Sigma SA mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Sigma AF 50-500mm F4.5-6.3 DG OS APO HSM Lens
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Lens Overview — Sigma 50-500mm f/4.5-6.3
Key Features — Sigma 50-500mm f/4.5-6.3
50–500mm Focal Range: Covers standard to super telephoto in a single lens, eliminating the need to swap glass across a wide range of shooting distances.
Full-Frame DG Coverage: Designed for full-frame DSLR sensors, and works equally well on APS-C bodies where the crop factor extends effective reach further.
Optical Image Stabilization: Built-in OS system helps counteract camera shake at longer focal lengths where even minor movement is significantly amplified.
HSM Autofocus Motor: Hyper Sonic Motor delivers fast, quiet autofocus suitable for tracking moving subjects across the full zoom range.
APO Optical Design: Apochromatic construction uses special glass elements to minimize chromatic aberration and color fringing across the zoom range.
f/4.5–6.3 Variable Aperture: Maximum aperture opens to f/4.5 at 50mm and narrows to f/6.3 at 500mm, a typical trade-off for a lens of this zoom reach.
Lens Specifications — Sigma 50-500mm f/4.5-6.3
| Spec | Detail |
|---|---|
| Use Cases | Wildlife, Sports, Travel, Birding |
| Lens Type | Zoom |
| Format | Full Frame |
| Zoom/Prime | Zoom |
| Focal Length | 50–500mm |
| Maximum Aperture | f/4.5 |
| Camera System | DSLR |
| Lens Mount | Canon EF, Nikon F, Sony A, Pentax K, Sigma SA |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | Optical |
| Filter Thread | 95mm |
Description — Sigma 50-500mm f/4.5-6.3
The Sigma AF 50-500mm F4.5-6.3 DG OS APO HSM is a super telephoto zoom lens built for full-frame DSLR systems, covering a focal length range from 50mm to 500mm. That single-lens versatility is hard to match, making it a practical choice for photographers who regularly shoot across wildly different distances. The maximum aperture varies from f/4.5 at the wide end to f/6.3 at 500mm.
Optical image stabilization is included to assist with camera shake, while both auto and manual focus modes are supported. The filter thread measures 95mm, which is worth planning around when budgeting for accessories. Tipping the scales at 1,970g, this is a substantial lens that rewards use with a solid support setup.
It is available in Canon EF, Nikon F, Sony A, Pentax K, and Sigma SA mounts, providing compatibility across the major DSLR platforms. The DG designation confirms full-frame sensor coverage across the entire zoom range.
Pros — Sigma 50-500mm f/4.5-6.3
- ✓Exceptionally wide 50–500mm focal length range covers standard to super telephoto in a single lens
- ✓Optical image stabilization included to reduce camera shake, particularly useful at longer focal lengths
- ✓Autofocus supported across the zoom range for tracking moving subjects
Cons — Sigma 50-500mm f/4.5-6.3
- ✗At 1,970g, the lens is very heavy and may require a tripod collar or dedicated support for extended use
- ✗Maximum aperture of f/6.3 at 500mm limits light intake in the telephoto range, which can challenge autofocus and exposure in low light
- ✗The 95mm filter thread is unusually large, making compatible filters and accessories expensive and less common
Videos — Sigma 50-500mm f/4.5-6.3
Sigma 50-500mm f/4.5-6.3 OS HSM lens review with samples (APS-C and full-frame) — Christopher Frost