xiluff8 years ago000Is it compatible with Nikon D3100?abiscioni8 years ago000does the lens fit the Nikon d40x?Show in original language (German)Commentmustache8 years ago000Yes. The Nikon D3100 has no autofocus motor that's why the lens needs one and all AF-I or AF-S lenses do. Since this lens is an AF-S and DX type (Nikon D3100 is DX too) it is compatible.Comment