Sigma17-50mmF28review

The Sigma 17-50mm f/2.8 delivers solid image quality. No glaring image quality issues were encountered, and the lens was definitely usable even wide-open at f/ ...

2015年4月24日 — Stellar sharpness from this lens - Sigma has really done a nice job with it. Sigma 17-50mm F2.8 EX DC OS HSM.

Sigma 17-50mm F2.8 EX DC OS HSM test and review. With this 17-50mm F2.8 lens for Nikon, Sigma offers a very high end wide-angle zoom at a very good price.

This is a very nice zoom lens! It is pretty sharp even wide open. Using it for astrophotography, stars are sharp across much of the field wide open (out to ...

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) ...

The 17-50mm f/2.8 EX DC HSM OS features the slightly simplified version of Sigma's HSM (hypersonic AF motor). It is still fast and nearly silent but full-time ...

2011年8月3日 — 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 ...