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08-11-2013, 06:33 PM   #1
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Auto Telesar - What mount ?

Well , Ive never seen a lens like this before , so naturally I had to have it ..
It was advertised as a Pentax mount ..

It is a threaded mount , same DIA as a M42 , but the threads dont quite match up ( M42 adapter - to K mount )
So just wondering if anyone knows exactly what it might be ?

Thank you .

08-11-2013, 08:23 PM   #2
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Looks like a preset lens. Probably a T-mount if the threads are the same diameter as M42. Try it with a cheap T-ring adapter.

Adorama T-Mount for Pentax K/Autofocus/DSLR Cameras 93403
08-11-2013, 09:56 PM   #3
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Original Poster
T-mount ... Wow - Thanks ! T mount to K adapter ordered ...

No , not a pre set lens ...

The ring at near top is for f-stop ...
The button [ press it ] opens aperture , and can be locked wide open ...

So what ever F stop setting you are on , just push the button to open the aperture ( to wide open )

Its a strange lens ... I have taken some macro shots with it :

Better wait for that T adapter before I continue ...

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