Leica Apo-Summicron-M 2/50mm ASPH. The Leica Apo-Summicron-M 2/50mm ASPH. Features of the Leica Apo-Summicron-M 2/50mm ASPH. : Modern optical performance paired with classic M-mount handling. Lens: Leica Apo-Summicron-M 2/50mm ASPH.
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