Review on Sigma 17-50mm f/2.8 EX DC OS HSM FLD Lens: Large Aperture Standard Zoom for Canon DSLR - International Version (No Warranty) by Tanya Meyers

I bought this lens mainly because it had good reviews everywhere. The first thing that struck me upon arrival was how well built and heavy it is. I'm not against the weight and it actually tells me that this is a good quality product. After taking a few shots both outdoors and indoors, I quickly noticed how sharp it was at all focal lengths. At f/2.8 it's sharp even wide open, and I like that the aperture stays at f/2.8 throughout the zoom range. I needed a second quality lens to start my little portrait business and now that I have this lens with my Canon 50mm 1.8 STM II I feel like I'm ready to take on the world!