Mamiya Macro 120mm f/4 Manual Focus "D" Lens for the 645 AFD-II - Mamiya now makes an improved version of their older and very successful 120mm /f4 macro lens. The big change with this lens is the improved digital communication with their 645 AFD-II SLR. The transfer is handled via a 16-bit CPU instead of the older 4-bit CPU. Digital macro photography has now been taken to the next step with this newer generation lens.