6: Super-Takumar with fine ribs on the aperture ring and F16 to the left 7: Super-Takumar with coarse ribs on aperture ring and F16 to the left (this lens) 8: Super-Multi-Coated Takumar 9: SMC Takumar with open aperture metering 8: Super-Multi-Coated Takumar (1st photo above): Sup...