Viltrox AF 28mm F 1 8 Avis | 54 Données comparées

The Viltrox AF 28mm F1.8 STM is a budget-friendly, full-frame prime lens for Sony E and Nikon Z mounts that balances an affordable $379 USD price point with a durable, mostly metal build. Testing on high-resolution cameras like the 61MP Sony a7RV reveals a lead-screw stepping focus motor (STM) that delivers quiet, confident, and highly accurate autofocus for general use. While it achieved a high 95-99% accuracy score tracking human eye action sequences, its focus tracking struggled slightly with fast, forward-moving subjects. Optically, the lens outperforms its modest MTF chart expectations, showcasing great center sharpness wide open at F1.8 and excellent corner-to-corner clarity when stopped down between F2.8 and F8. It also features a well-damped manual focus ring, a physical aperture ring, a USB-C port for seamless firmware updates, low distortion, and strong flare resistance when shooting directly into the sun. Despite these performance strengths, the lens displays clear drawbacks rooted in Viltrox’s older design and optical glass manufacturing standards. It suffers from pronounced longitudinal chromatic aberration (green color fringing) behind the plane of focus, which degrades bokeh contrast and...

The Viltrox AF 28mm f/1.8 Z is an affordable, fast wide-angle prime lens designed for full-frame Nikon Z-mount cameras, priced at $379.00. Weighing 12.9 oz (367 g), it offers a lightweight and compact form factor that balances well on bodies like the Nikon Z8, Z5, Z6, Z7, and Zf. The lens features a solid metal mount, a 55mm filter thread, internal focusing, and a smooth, unclickable aperture ring designed with variable f-stops, which makes it particularly attractive to videographers. Its STM autofocus motor delivers silent, fast, and accurate performance that fully supports Nikon's native eye-detection tracking. Optically, the lens yields good sharpness in the center when shot wide open at f/1.8, while displaying pleasing color rendering and smooth bokeh transitions. The primary pros of the lens are its competitive price point, fast f/1.8 maximum aperture, and internal focusing mechanism, making it a strong value proposition compared to more expensive native options like the Nikkor Z 35mm f/1.8 S. However, the lens does come with specific limitations and cons. Its corner sharpness is slightly soft when shooting wide open at f/1.8,...

The Viltrox AF 28mm F 1.8 Z is a budget-friendly third-party wide-angle lens tested on a Nikon Z8 that offers a fast f/1.8 aperture on a full-frame sensor, making it excellent for street photography and environmental portraits. Optically, the lens delivers solid performance; while it is slightly soft when shot wide open, it remains sharper than older classic lenses like the Nikon AF 28mm f/1.4 ED and still provides great subject isolation. Additionally, its autofocus is impressive for a third-party lens, operating quickly, silently, and without hunting—matching the speed of native options like the Nikon Z 26mm f/2.8. The overall build also feels solid due to its metal lens barrel. However, the lens has notable build and mechanical drawbacks, specifically regarding its aperture ring and included accessories. The aperture ring is described as poorly executed, producing a coarse grinding sound while failing to provide satisfying clicks or a smooth turn, forcing the reviewer to leave it on the automatic "A" setting. Furthermore, the included lens shade is constructed from cheap-looking plastic. Ultimately, despite these design flaws and the fact that...