Mamiya makes three (3) auto extension tubes for the 645 AF camera: NA401 (12mm), NA402 (24mm), NA403 (36mm).
Note: These tubes are meter coupled but DO NOT couple with the auto focus system
- Each tube provides a different degree of extension and can be used individually or together
- When all three are used together, they provide maximum magnification
- Using all three rings with the 80mm f2.8 lens provides maximum magnification of 1:1