Sigma 28-70mm F2.8 DG DN | C

Leica L-Mount

Review

The Sigma 28-70mm F2.8 DG DN | C is an impressive addition to Sigma's line of lenses designed specifically for mirrorless cameras, and it's optimized for the L-mount. As a versatile standard zoom lens, it covers a popular focal range, making it a great choice for various photography styles, including landscapes, portraiture, street photography, and more.

One of the most notable features of this lens is its constant f/2.8 aperture, which allows for excellent low-light performance and depth-of-field control. This makes it a strong contender for photographers who want to shoot in dim conditions without sacrificing image quality. The lens is well-constructed, combining a robust design with a relatively compact and lightweight build, making it ideal for traveling or lengthy shooting sessions. The optical design incorporates up to 13 elements in 11 groups, effectively minimizing optical aberrations and enhancing overall image quality across the zoom range.

In terms of image quality, the Sigma 28-70mm maintains sharpness throughout its focal range, with impressive corner-to-corner performance. Additionally, the lens features a high-quality multi-layer coating that reduces flare and ghosting, especially when shooting backlit scenes. The bokeh produced by the lens is pleasing, thanks to its nine-blade diaphragm, which aids in creating smooth out-of-focus highlights.

However, the Sigma 28-70mm is not without its drawbacks. While the autofocus system is generally fast and accurate, it may struggle in particularly low-light situations or when tracking fast-moving subjects. Furthermore, though the lens is weather-sealed, it's worth noting that it may not be as robust as some higher-end lenses in Sigma's lineup. Additionally, some users might find the lack of dedicated stabilization less than ideal when shooting handheld at slower shutter speeds.

Pros and Cons

Pros

• Constant f/2.8 aperture for excellent low-light performance.
• Compact and lightweight design perfect for portability.
• Sharp image quality with minimal optical aberrations.
• Good bokeh and pleasing out-of-focus rendering.
• Versatile focal length suitable for various genres.

Cons

• Autofocus may struggle in low light and with fast-moving subjects.
• Not as robust as higher-end Sigma lenses.
• Lack of built-in image stabilization could limit handheld shooting at slower shutter speeds.

Verdict

Overall, the Sigma 28-70mm F2.8 DG DN | C is a strong performer that delivers on many fronts, making it an excellent choice for photographers looking to expand their kit with a versatile lens. While it has some minor shortcomings, its combination of image quality, portability, and affordability makes it a worthwhile investment for both hobbyists and professionals alike. Whether you're capturing stunning landscapes or intimate portraits, this lens will serve you well in a myriad of shooting scenarios.