I have a complete set of Mamiya M645 extension tubes for the 645 cameras. These have the mechanism on them for operating the lens from the finder and will work in manual on the AF cameras too.
I am asking $100.00 for the set and the set includes #1, #2 and #3 tubes. They are in fantastic shape and work perfectly.
I am asking $100.00 for the set and the set includes #1, #2 and #3 tubes. They are in fantastic shape and work perfectly.