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06-11-2011, 10:08 PM   #1
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K-Mount 135mm 2.5 Super-Multi-Coated 43812

Hi - I'm newly registered just to ask a question about a lens I'm selling. I can't seem to completely identify it.

It's a 135mm f/2.5 Super-Multi-Coated Takumar Lens. Model number 43812. (I just found out how to find the model number from reading these forums.) However, it's a K-mount, not a screw mount. From what I've read on these forums and the pictures I've seen, 43812 is supposed to be a screw mount M42 lens, but this is not. Also, it is not an "SMC" lens, but a "Super-Multi-Coated" lens.

Do I have an extremely rare lens here? Or am I just having trouble confirming its identity?

It would be nice to hear I have a rare lens, but more importantly I want to label it correctly for sale.

06-12-2011, 12:55 AM   #2
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is it's bayonet, by any chance, removeable? chances are, you might have the screw mount one with a bayonet adapter
06-12-2011, 04:10 AM   #3
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QuoteOriginally posted by adpo Quote
is it's bayonet, by any chance, removeable? chances are, you might have the screw mount one with a bayonet adapter
Yes, that's what it sounds like..... what other explanation would suffice?
06-12-2011, 06:30 AM   #4
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That's possible. There is a silver ring around the the otherwise black lens. How would I remove the adapter?

06-12-2011, 07:46 AM   #5
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put the pentax k lenscap on and unscrew it. normal m42 thread, turn it left to unscrew.
06-12-2011, 11:28 AM   #6
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Thanks - that did it.
06-12-2011, 05:05 PM   #7
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That is a very good lens. I understand the transition from super-multi-coated to smc was a simple name change and was the same advanced coating process.
06-13-2011, 01:23 AM   #8
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QuoteOriginally posted by kotaejin Quote
It's a 135mm f/2.5 Super-Multi-Coated Takumar Lens. Model number 43812. (I just found out how to find the model number from reading these forums.) However, it's a K-mount, not a screw mount. From what I've read on these forums and the pictures I've seen, 43812 is supposed to be a screw mount M42 lens, but this is not. Also, it is not an "SMC" lens, but a "Super-Multi-Coated" lens.
Coult this mean something?

Here is a list for bayonet version, but no idea if the price differs for screwmount.
Pentax K 2,5/135 Takumar ebay | Flickr - Photo Sharing!

06-13-2011, 01:42 AM   #9
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Don't for heaven sake get the OP's highly desirable lens confused with the dreaded Takumar (Bayonet) 135/2.5, which is neither "super" nor "multicoated". (Apologies to all Bayonet owners - it's not that bad, really!)
06-13-2011, 11:54 AM   #10
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QuoteOriginally posted by RonHendriks1966 Quote
Could this mean something?
All the high spikes are when the buyer thought they were getting the SMC Pentax 135mm f2.5. The lowest spikes are when the seller said, "This is not the SMC Pentax 135mm f2.5."
06-13-2011, 01:28 PM   #11
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The later SMC Takumar 135/2.5 is optically identical to the K-mount version and goes for just a little less used, typically.
06-13-2011, 01:59 PM   #12
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QuoteOriginally posted by deadwolfbones Quote
The later SMC Takumar 135/2.5 is optically identical to the K-mount version and goes for just a little less used, typically.
Post 1971 versions of the "super-multi-coated" Takumar 135:2.5 had the same optical design as the later K-mount smc 135:2.5 see:Super-Multi-Coated TAKUMAR/Super-Takumar 135mm F2.5 Reviews - M42 Screwmount Telephoto Primes - Pentax Lens Reviews & Pentax Lens Database

The PentaxForums database implies there never was a screw mount "smc" 135:2.5
06-13-2011, 02:34 PM   #13
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QuoteOriginally posted by newarts Quote
Post 1971 versions of the "super-multi-coated" Takumar 135:2.5 had the same optical design as the later K-mount smc 135:2.5 see:Super-Multi-Coated TAKUMAR/Super-Takumar 135mm F2.5 Reviews - M42 Screwmount Telephoto Primes - Pentax Lens Reviews & Pentax Lens Database

The PentaxForums database implies there never was a screw mount "smc" 135:2.5
I was using SMC and S-M-C interchangeably. My bad.
06-13-2011, 03:27 PM   #14
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QuoteOriginally posted by deadwolfbones Quote
I was using SMC and S-M-C interchangeably. My bad.
Too many names!!!
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