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02-11-2013, 06:44 AM   #1

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K135/2.5- SMC vs smc variant

There seems to be two variants of K135/2.5, one marked "smc" and another marked "SMC"

K 135/2.5

Is there any difference between both the variants? If yes, which is better?


02-11-2013, 08:36 AM   #2
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Not that I know of, only the first generation K mounts have the SMC (in capitals), the 55mm 2.0 (K1000 kit lens) was probably the first lens with the new format lens name.
02-11-2013, 05:13 PM   #3
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They are the same the difference is cosmetic. Pentax started adding "mm" and started using a lower case "smc" in the lens name in 1977.


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