A really excellent example of the Mamiya 645 300mm 5.6 C lens – very lightly used and super clean optics – this lens has just been serviced.
In fact this lens is very near mint except for a tiny spot at the rear where fungus has been removed and left slight scar. This will not have any optical effect on your images. A great example of this rather rare focal length, equivalent to about 200mm in 135 format.