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andreas griesmayr: Vivitar Close Focus f2.8 28mm
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andreas griesmayr: Vivitar f2 28mm
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andreas griesmayr: Pentax K f2.8 30mm
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andreas griesmayr: Pentax K f3.5 28mm
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andreas griesmayr: Olympus MC OM f2 28mm
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andreas griesmayr: M-Rokkor f2.8 28mm
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andreas griesmayr: Komura f3.5 28mm
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andreas griesmayr: Kiron f2.8 28mm
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andreas griesmayr: lenses used for 28m lens test