Fotasy NAME Auto Focus Marco Extension Tube 10mm 16mm 26mm for Sony NEX E-Mount Cameras This extension tubes are designed to enable a lens to focus closer than its normal set minimum focusing distance. Getting closer has the effect of magnifying your subject. Designed with all the circuitry and mechanical coupling to maintain auto focus and auto exposure with Sony NEX E-mount lenses It comes as a set of 2 tubes of different lengths which singly or in combination on makes it usable in 3 different lengths, 10mm, 16mm, 26mm. Compatible with Sony NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX5T NEX6 NEX7 NEX-F3 a6000 a5000 a3500 a3000 Alpha A7 A7R NEX-VG10 VG20 etc. Also compatible with Manual Lens, but Auto Focus Function will not supported.