I Know That The AF-S Let The Camera AutoFocus Like D3100 Deosn't Have Built In Motor. EF-S I Saw Some One Saying (EF-S lenses will physicaly damage Canon's full frame or APS-H cameras if one mounts them on those,). What Does That Mean ?
См. статью: What's The Diff. Between AF-S (Nikon) EF-S (Canon)?