3 aug. 2011 · With a wide open f/2.8 aperture, the Sigma 17-50mm f/2.8 EX DC OS HSM Lens is impressively sharp in the center throughout the focal length range ...

What we like · Overall DxOMark Score very good for this type of zoom and it stays very high from f/2.8 to f/4 on the whole focal range · The lens is very sharp ...

This is an excellent general purpose lens. With its constant f/2.8 aperture it makes for a great portrait lens.

The build quality of the Sigma lens is pretty good although it stays a little short of the high expectations that we associate with a Sigma EX ("Excellence") ...

24 apr. 2015 · Stellar sharpness from this lens - Sigma has really done a nice job with it. Sigma 17-50mm F2.8 EX DC OS HSM.

3 maj 2020 · The color and detail always seem vibrant and sharp. I'm constantly hiking in rough terrain and I can say this lens can take a decent beating.

14 jan. 2024 · It was a very nice lens, I loved f2.8 for low light and shallow depth of field. Never had any issue with back focusing. If your camera body ...

4 feb. 2013 · As for autofocus, this lens is both fast and quiet. I didn't record audio, but compared to other lenses I've used, the Sigma is barely audible ...

Overall the Sigma 17-50mm f/2.8 EX DC OS is one of the best “everyday” APS-C lenses, together with the also excellent 17-70mm f/2.8-4 DC OS; and it's curiously ...

30 juli 2010 · The Sigma 17–50 mm f/2.8 EX DC OS HSM was launched with everything what a lens of this class should be equipped with: fixed aperture, good focal range with ...