Used: ET17 Extension tube for Rolleiflex 6000 and Hy6 cameras
The ET version of the extension tubes has the modern electronics that will support the newer autofocus lenses. The 17mm is probably the 2nd most common extension tube used and will bring your subject much closer. Focus rings can stack as well.
This ET17 (17mm) extension tube is in good working condition, but has a lot of signs from use. Fully tested for function. No caps are included.