>Not Bob but Rob in reply; ~68.6mm diameter, now just envision me with the >pointy ends of my stainless steel vernier calipers trying to avoid gouging the >front element of my SMCPA15f3.5... > >Cheers, > >Rob Studdert
I think we both have the non-aspheric lens. Well, I understand the A lens is for sure non-aspheric and that any SMC Takumar or K 15mm that has a front element diameter of 68/69mm is non-aspheric. The SMC Takumar that have sn # in the 7xxxxxx have more chance to be aspheric than the "later ones" in the 8xxxxx, like mine (#8014040), I guess. Bob said: >My 15mm's serial number is 8013862. I wonder what the original starting >number was and what the increment was. Bob, is it a SMC Takumar or a K, and could you measure its front element? Andre --
