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teleconverter for Vivitar 70-210mm

HI, your "Stacking Teleconverters" write-up was pretty enlightening.....

I am looking for a 2x TC for my VIVITAR 70-210mm zoom lens.....Could you help me choose one please....!!!

Sun, 12 Mar 2006 04:37:47 -0800

John, what's the aperture of the Vivitar 70-210mm lens? Which camera system is the lens for?

Chieh Cheng
Mon, 13 Mar 2006 10:48:56 -0800

Thanks for responding.

My Vivitar 70-210mm lens is of aperture 4.5 - 5.6.
I am using it in a Cosina C1S SLR.

Mon, 13 Mar 2006 12:46:07 -0800

I believe that the Cosina C1S SLR uses the Pentax K-mount. The good news is that there are a wide variety of lenses for this mount. The bad news is that I only found one used 2x teleconverter for it:

Cpc/pentax-k 2-x Tele Converter

Here are a lot of Pentax K lenses:
Search for "Pentax K" on B&H

Chieh Cheng
Mon, 13 Mar 2006 13:00:15 -0800

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Title: Stacking Teleconverters
Weblog: Camera Hacker
Tracked: Mon, 13 Mar 2006 10:48:16 -0800

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