Sigma 50-500mm F4.5-6.3 DG OS HSM

Nikon F (DX/FX)

Review

The Sigma 50-500mm F4.5-6.3 DG OS HSM is a versatile super telephoto zoom lens designed for the Nikon F (DX) mount. This lens offers an impressive focal length range that makes it suitable for wildlife photography, sports events, and any situation where you need to capture subjects at a distance. Weighing in at a solid build quality while still being manageable for handheld shooting, this lens is both practical and powerful.

Design and Build Quality

Sigma has crafted this lens with a sturdy exterior, providing a good grip and robust feel. The lens features a textured finish that enhances handling. The optical design incorporates a number of special elements, including low dispersion glass, to reduce chromatic aberrations. The lens also benefits from Sigma’s Optical Stabilization (OS) technology, which is a significant plus for handheld shooting, particularly at the longer focal lengths.

Image Quality

Image quality is generally impressive across most of the zoom range, with sharp results on the center of the frame. At the wider end, images exhibit great detail and vibrant colors, while the performance at 500mm is commendable, particularly when stopped down a little. However, it’s important to note that at the widest aperture of F6.3, some softness may be present, particularly in the corners. Distortion and vignetting are well-controlled but may still warrant corrections in post-processing, especially at the extremes of the zoom range.

Autofocus Performance

The lens integrates a Hyper Sonic Motor (HSM) for quick and quiet autofocus, making it a suitable option for capturing fast-moving subjects. While the AF system performs well in well-lit conditions, it can struggle slightly in low light or when shooting at the extreme ends of the zoom range. Users may find themselves needing to fine-tune the autofocus occasionally, particularly if shooting with high precision in challenging settings.

Versatility

With a focal length range that spans from 50mm to an astounding 500mm, this lens works well for a variety of photography genres. Whether you’re snapping a candid at a family gathering or stalking wildlife from a distance, the Sigma 50-500mm offers a level of flexibility that is hard to beat. Additionally, its compatibility with teleconverters allows for even more reach, making it an appealing option for photographers looking to extend their capabilities.

Pros and Cons

Pros

• Wide focal length range from 50mm to 500mm
• Good build quality and handling
• Impressive optical stabilization
• Generally sharp focus at the center through most focal lengths
• Versatile for various photography styles

Cons

• Autofocus can be slower in low light
• Slight softness at the widest aperture, especially towards the corners
• Bulkier and heavier than many smaller zooms

Verdict

The Sigma 50-500mm F4.5-6.3 DG OS HSM is a capable super telephoto lens for Nikon F (DX) users who seek versatility and range without compromising too much on image quality. While there are a few drawbacks related to low-light autofocus performance and edge sharpness at wider apertures, the advantages—especially in terms of focal range and image stabilization—make this lens a worthy investment for both enthusiasts and professionals alike. If you're in the market for a lens that can do it all in the telephoto arena, the Sigma 50-500mm should definitely be on your radar.