This Mamiya 55mm F1.4 Sekor ES lens has been professionally remounted to Sony E-mount and is compatible with Sony cameras. It has a maximum aperture of f/1.4 and comes with a compatible lens front and filter size of 52mm. The exterior is made of aluminum and it is a full-frame lens.This rare lens is in good+ condition and was made in Japan. We have included test photos to give you an idea of the lens's capabilities. Don't miss out on the chance to add this unique lens to your collection.