s-m-c Takumar: any difference between old and new production re coatings?

Started Apr 7, 2013 | Discussions thread
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BobORama
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s-m-c Takumar: any difference between old and new production re coatings?
Apr 7, 2013

Given a Super-Multi-Coated Takumar lens of some type, is there any difference between older and newer production of the same lens in terms of coatings?   I'm not referring to Takumar vs Super-Takumar, etc.   But rather if the coatings are significantly different between older and newer production runs of what, outwardly, is the the same lens?

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