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Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.
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Help on SMC Takumar 55mm f1.8
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Hi, recently I got this lens but the Auto/Manual tab got stuck at Auto, I can't push it to Manual. I tried pushing the pins but it won't work. Is it spoil or there is special technic to release it ? Thanks

Its the early SMC version according to this site, the 2nd photo

http://www.pentaxforums.com/lensreviews/showproduct.php?product=267&cat=23


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Krisgage wrote:
Hi, recently I got this lens but the Auto/Manual tab got stuck at Auto, I can't push it to Manual. I tried pushing the pins but it won't work. Is it spoil or there is special technic to release it ? Thanks

Its the early SMC version according to this site, the 2nd photo

http://www.pentaxforums.com/lensreviews/showproduct.php?product=267&cat=23

There is a little pin on the mount that you need to depress while switching between manual and auto. It is specific to Taks.


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Embarassed I did the same with a SMC 50/1.4 I got at goodwill. For 6 months I figured it was broken and a tax write off Laughing

The pin is really tiny, it is on the flat surface of the mount where when you mount the lens on a camera it gets pushed in. Unless the camera's a SP-F or ES/ES-II which have a groove to keep the pin non-pushed - this to lock the lens into Auto for the open aperture metering.

This pin 'feature' is specific to SMC and S-M-C Taks only, Supers etc do not have it.


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Ah ic ! Thanks guys ! Its the tiny round with tiny pin inside beside the screwmount right ? Think I saw that.


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Yes, that's the one. It is a bit confusing until you press it or mount the lens!!!