it is really nice to see that you are unboxing of Sigma 24-70mm, i really happy to see this informative review vlog, remember keep warranty card at safe place , that will be useful if you get any issue in specific time of buying. dear you know, i am very much happy to meet you, becasue i am trying to buy video and photography camera, and now you will guide me, about lens, and i have zero knowledge about lengs, and in all this regards, i will give you my requirements and you will guide me , thank you dear for this informative review about Sigma 24-70mm