Amazon.com : Lightdow T/T2 Mount Lens Adapter Ring for Sony A9, A7S II, A7R II, A7S, A7R, A7 II, A7, NEX-7, NEX-6, NEX-5, NEX-5N, NEX-5R, NEX-5T, NEX-3, NEX-C3, NEX-F3, NEX-3N, A6500, A6300,
FotodioX Lens Mount Adapter for T-Mount T/T-2 Screw Mount T2-PK
T2 T-2 T-Mount Telephoto Telescope Lens to M42 For Mount Praktica Pentax Adapter | eBay
T2 Adapter — Sony Alpha Mount - Infinity Photo-Optical Company