Pentax Takumar 135mm F2.5 Review - 6 Elements VS 5 Elements
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The Hidden Secrets of Radioactive Vintage Lenses!
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Is the Takumar 2.5/135mm as good as they Say
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The most underrated vintage lenses | Pentax Super Takumar
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TAKUMAR 135MM F/3.5 - Is It Good Enough?
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Bokeh of classic lenses. An analysis of the Super-Takumar 50mm f1.4 (8 elements version)
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7 BARGAIN 135mm Vintage Lenses - £30 - £80!
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Pentax 135 mm f2.5 vintage lens, why such mixed opinions?.
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