Essai du Sigma 14-24 mm f/2,8 DG HSM | Art sur Canon EOS 5D Mark III et EOS 50D par Maciej Latałło pour LensTip.com :Sigma A 14-24 mm f/2.8 DG HSM review - LensTip.com
Points forts :
- construction solide
- excellent qualité d'image au centre
- bonne qualité d'image sur les bords du format APS-C
- qualité d'image correcte sur les bords du format 24x36
- pas de problème d'aberration chromatique longitudinale
- aberration chromatique latérale imperceptible
- pas de problème de distorsion en APS-C
- correction raisonnable de la coma
- astigmatisme négligeable
- faible vignetage en APS-C
- autofocus silencieux et précis
- bonne performance en contre-jour.
Points faibles :
- aberration sphérique un peu trop élevée
- énorme vignetage en 24x36.
The Sigma company have got us used to the fact that a purchase of any of the Art line lenses means a reliable investment with a guarantee of above-average optics and superior build quality – for a price often lower than in the case of the rivals. Here their task was especially difficult because in the same market segment you can find the excellent Nikkor AF-S 14–24 mm f/2.8G ED and also one of the best Tamron lenses available currently on the market, the Tamron 15–30 mm f/2.8 Di VC USD. What’s more, the Tamron launch happened several years ago so its price has managed to settle down on a very reasonable level of $1200. That’s why the task of the Sigma, which entered the market with the $1300 price tag, is more difficult. The Sigma offers you a bit wider angle of view than the Tamron but its maximum focal length is shorter and it doesn’t have any optical stabilization. It remains optically better, especially on the edges of the sensor near the maximum relative aperture, and its lateral chromatic aberration correction is superior but the difference remains slight; in such a situation for many customers the price still might remain the sole decisive factor. Let’s face it, the Tamron is in a more favourable position. As long as the price of the Sigma doesn’t decrease a bit, the Tamron might sell better.
The summary of this test should be very optimistic. High quality competition – there’s nothing better from the customers’ point of view.