Reviews and Problems with Sigma 24-70mm F2.8 EX DG MACRO
Showing 1-5 of 5
REVIEW: Sigma 24-70mm f/2.8 EX DG
27 November 2009
Conclusion: This is a large lens that is well built and feels like it will go the distance. The zoom ring is surprisingly small for the size of the mechanism it has to move, but although a little heavy in operation, worked well. Autofocus is noisy but accurate. The 24mm end is just wide enough to start being call wide angle on a cropped sensor, but if you are still mixing digital with film, then this lens is a very good buy.
Pros: Picture quality, especially edges stopped down., Build quality, Easy manual focus, Price (especially from ePz shop)
Cons: Noisy Autofocus, Big for range, A little soft wide open
Sigma AF 24-70mm f/2.8 EX DG macro (Canon) - Review / Lab Test Report
31 October 2008
Conclusion: The Sigma AF 24-70mm f/2.8 EX DG macro showed an impressive performance throughout all characteristics. It is a very sharp lens at all mainstream aperture settings. Distortions, CAs as well as vignetting are moderate and usually nothing to worry about. The build quality is very fine and the AF is pretty fast despite the enormous glass elements and a conventional AF micro-motor. The biggest problem of the Sigma is not performance but its scope.
Pros: High resolution, even at f/2.8, Centre resolution and corner resolution are almost equal at all apertures, Very low distortion, Very low vignetting from f/4.0, Low chromatic aberration, Good value for money
Summary: Przewagę nad poprzednikiem, czyli E-410, nowy model zawdzięcza możliwości automatycznego ustawiania ostrości w trybie Live View, możliwości zdalnego sterowania lampami błyskowymi, lepszym trybem seryjnym oraz systemowi rozpoznawania twarzy.