B4 - L for B4 2/3" mount lens for L mount camera Mount Adapter Ring for Panasonic S1 S5 S1R Sigma FP FPL BF Leica TL CL SL etc.

B4 - L for B4 2/3" mount lens for L mount camera Mount Adapter Ring for Panasonic S1 S5 S1R Sigma FP FPL BF Leica TL CL SL etc.

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