This sale is for a really good condition Mamiya RB67 ProS Rotating Back Adapter (RBA) – suitable for all of the Mamiya RB67 cameras – the Pro, ProS and ProSD – and also the RZ67 series. Please note that this RBA is the standard 6x7cm model for all 6×7 and 645 backs; it is not suitable for using with 6×8 backs.
This RBA is in good working condition – with only normal signs of use. The RBA looks a bit tatty with some paint bubbling and paint loss but it has been tested and is in full working order. It is however slightly but not seriously difficult to rotate, as is very common as thse adapters get older. It has worn but perfectly OK light seals. Ideal as a replacement for a seized or not working RBA.
A really nice item. Now getting harder to find.