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04-05-2011, 06:15 PM   #1
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White Dot on 50mm f1.4 Super-Tak

Hi,

What is the difference (if any) between a "normal" Super-Tak 50mm f1.4 and one with a white dot between 1.4 and 2 on the aperture ring? I have both of these and cannot find out any info. These are not SMC/Super Multi Coated...

Thanks,

Edd

04-06-2011, 03:21 AM   #2
Ira
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From what I know, the only purpose of the white dot is to help you mount it in darkness on the body, which has a corresponding dot.

So maybe just different model years, but same lens.
04-06-2011, 04:42 AM   #3
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https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/52313-old-lens...white-dot.html
04-06-2011, 06:49 AM   #4
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Hmmm,

I will take and post a photo (if I can) to show what I mean. It is not an alignment dot on the body. It is directly on the aperture ring, between f1.4 and f2.

Edd

04-06-2011, 07:31 AM   #5
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It marks the spot for f/2. The 8-element Super-Tak is marked f/2 but the 7-element Super-Tak has the white dot. The S-M-C and SMC went back to having a f/2.
04-06-2011, 07:45 AM   #6
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If you take a look at our Pentax lens database, it would show you what to look for.
Heres the link for the 1st version and how to distinguish it: Super-Takumar 50mm F1.4 (Early 8-Element Variant) Reviews - Pentax Lens Reviews & Pentax Lens Database

Here's the 2nd version and how to distinguish it too: SMC/S-M-C/Super Takumar 50mm F1.4 Reviews - Pentax Lens Reviews & Pentax Lens Database

In any case the 1st version has a protruding/bulging back lens.
Hope that helps!
04-07-2011, 03:03 AM   #7
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Boris and Gerry,

Thanks for replies...and the info on the data base. Got my answer now!

Regards,

Edd
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