Originally posted by Abbazz Yes and no. For some lenses, the optical formula or the build quality has changed between the Super-Takumar and the S-M-C version. The 135/3.5 is one of these lenses: the earlier version of the Super-Takumar with 5 elements (product number 43540) had better chromatic aberrations control than both the later Super-Takumar (product number 43541) and the S-M-C version (product number 43542), which had only 4 elements.
Cheers!
Abbazz
OK, I just received my Super Takumar 135/3.5 in the mail, and it doesn't have the product code on the Auto/Manual switch. Can anyone tell me, from these photos (e.g. form the serial number), whether it's an early or late Super Tak?