Tamron lens for Sony "a-mount" and Minolta AF full frame and aps-c digital and film cameras. f2.8 through the entire zoom range makes low light shooting possible with crisp detail in all situations. 70-210mm puts you in the most useful zoom range. Pro quality glass and sturdy build means this lense will last a few lifetimes. I paid $650 for it ten years ago and have taken countless fantastic shots with this lens. Pair this with a 50mm prime lens in your kit bag and your set for whatever comes your way. I also have a dozen other lenses for sale including 50mm and 28mm prime lenses, check my other Ads.