| "So what is great about it? Well most everything I would say. It is a performer, it's sharp, it's light, it's sturdy, easy to use, and a good all round lens, and also it's easy on your budget from B & H." bhphotovideo.com | More advanced image stabilization | | Sigma OS | | | Aperture | f/2.8 | | | Diameter | 79 mm | | | | | Fixed aperture | No | | | Length | 82 mm | | | | | Image stabilization | Sigma OS | | | Max focal length | 70 mm | | | | | Zoom range | 4.1x | | | Weight | 465 g | | | | | |