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09-11-2013, 06:41 AM   #1
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Pentax-F vs. Takumar-F

Is there really a difference between a SMC Pentax-F and Takumar-F lens? I'm not talking about the earliest manual lenses, but the F series, which were made much later on. I assumed that there is supposed to be a difference in the coating, but when I look at them, the coating appears to be the same.

Steve

09-11-2013, 07:21 AM - 1 Like   #2
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I am not sure about the F lenses.

For the A lenses, it depends.
Many of the "Takumar" labelled lenses were manufactured by Cosmicar (a then Taiwanese subsidiary of Asahi Pentax), and often also branded as "Profile". Some used the same optical formula as the SMC Pentax-A models, but some a simpler one.

There were a lot of lenses sold as "SMC Pentax-A", and also as "Pentax-A". And if so, the "Pentax-A" version was usually also sold as "Takumar-A" and "Profile-A" (then the Pentax name was not mentioned anywhere). Specially in Europe the simpler brothers of the Super A (Program A and A3/A3000) were often bundled with either the cheaper "Pentax-A 3.5-4.5/28-80", "Profile A 3.5-4.5/28-80", or "Takumar A 3.5-4.5/28-80" (all identical lenses). All three lenses used a much simpler optical formula (less elements) and had no SMC coating, and they were manufactured by Cosmicar.

Whether it was the same with any F lenses, I don't know. But I do know that the coating of some of the Takumar Bayonets was also improved throughout the production cycle. I am sure late copies of the Takumar [Bayonet] 2.8/135 hat a non-SMC coating which was nearly as good as the SMC.
09-11-2013, 09:25 AM   #3
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QuoteOriginally posted by Spodeworld Quote
Is there really a difference between a SMC Pentax-F and Takumar-F lens? I'm not talking about the earliest manual lenses, but the F series, which were made much later on. I assumed that there is supposed to be a difference in the coating, but when I look at them, the coating appears to be the same.

Steve
They are basically the same except for the appearance, I believe, though both series were very small. Pentax-F and takumar-F lenses are not multi-coated.

Adam
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09-11-2013, 10:55 AM   #4
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I should have been clearer. I meant the SMC Pentax-F and Takumar-F. I've looked at both, and I can't see a difference in the appearance of the coatings which made me wonder if the Takumar-F is also multicoated. I've looked at the 28-80 f3.5-4.5 and the 70-210 f4-5.6 variants.

09-11-2013, 11:07 AM   #5
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The Takumar-F 70-210 and SMC Pentax-F 70-210 have different optical formulas.

The Takumar is 10-elements in 8-groups. The SMC Pentax is 13-elements in 9-groups. The Takumar-F may well be MC, but it isn't SMC.
09-11-2013, 11:24 AM   #6
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Would it be correct to assume that the SMC would be the superior lens?
09-11-2013, 04:25 PM   #7
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QuoteOriginally posted by Spodeworld Quote
Would it be correct to assume that the SMC would be the superior lens?
Pentax thought yes. The SMC versions were way more expensive.

And in cases they offered bundling to the sales chain, cheaper bodies were often bundled with the non-SMC versions, top models never.

As I said in a previous post:
In Germany the Super A was bundled with either the SMC-A 1.7/50 or SMC-A 1.4/50.
The Program A and A3 were bundled with Profile or Takumar [bayonet] zooms (sometimes with the SMC-A 2.0/50).
09-11-2013, 11:33 PM   #8
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QuoteOriginally posted by boriscleto Quote
The Takumar-F 70-210 and SMC Pentax-F 70-210 have different optical formulas.

The Takumar is 10-elements in 8-groups. The SMC Pentax is 13-elements in 9-groups. The Takumar-F may well be MC, but it isn't SMC.
Interesting. I shall have to compare pix taken by both. I got a Takumar F 70-210 (and an SMC Pentax F 35-70 macro) with my then new SFx in 1989.

Edit: oops! My lens is a Takumar F 70-200 not 210.


Last edited by p38arover; 09-11-2013 at 11:44 PM.
09-12-2013, 02:57 AM - 1 Like   #9
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The Takumar 70-200 has 10 elements in 8 groups and weighs 540g, the Takumar 70-210 has 13 elements in 9 groups and weighs 555g. Bojidar Dimitrov's page has the incorrect weight listed for the 70-200, and the incorrect optical formula listed for the 70-210. (The Takumar 70-210 has the same formula as the SMC-F 70-210.)

The Takumar 70-210 I have is definitely multi-coated, but I doubt it has SMC.
09-12-2013, 11:18 AM   #10
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QuoteOriginally posted by Spodeworld Quote
Would it be correct to assume that the SMC would be the superior lens?
The SMC Pentax-F 70-210mm f4-5.6 is a very good lens. I think if you could find one for $100-125 just buy that. The other lenses will at least have the same drawbacks: noisy AF, heavy, ugly, rotating front element when focusing.

Some people seem to like their Takumar-Fs, enough so they can't all be wrong. I've seen comparisons that suggest the 70-210s are the same. Maybe it would be worth trying at a lower price, knowing that on resale, the next buyer would have similar questions.

I know that the Takumar-F 70-200mm f4-5.6 isn't SMC and only looks similar to the SMC Pentax-F 70-210mm f4-5.6. The DA-L 50-200 might be a better bottom line choice here.
09-12-2013, 11:43 AM   #11
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QuoteOriginally posted by Spodeworld Quote
Is there really a difference between a SMC Pentax-F and Takumar-F lens? I'm not talking about the earliest manual lenses, but the F series, which were made much later on. I assumed that there is supposed to be a difference in the coating, but when I look at them, the coating appears to be the same.

Steve
Yes a tak F is an SMC F without SMC. It may be coated but it is no where near the same quality of coatings and flare performance and constant suffer as a result
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