According to Sigma, this is the World's first lens offering an aperture of f1.8 throughout the zoom range. This for DSLR camera's that have the APS-C format. I'm not usually a third party lens guy but this one seem very intrigue. Head over to the link for more information.
Here's group of wonderful photos that were NOT manipulated in Photoshop. With imagination, hard work and/or amazing timing you can be rewarded with a sweet photo. Click on link below image to see more. Enoy!
Click to see more images>> Pictures that are Amazingly Not Photoshopped