>> For what it's worth, the lens I was asking about is the K-mount version. I'm >> not sure what difference that might make, other than the SMC coating.
> I think different formula as well, check Boj's site (and compare with > the SMC Pentax 135/2.5). The Takumar [Bayonet] 135/2.5 is a ~totally~ different lens from the SMC K 135/2.5 (and its screwmount predecessors). Fred
