JJC RR EOS58 - Retro Adapter for Canon EOS to 58mm filter thread - Umkehrring retro ring reversal adapter for Canon EOS example: 1D X, 1D C, 1D Mark I-IV, 1Ds Mark I-III, 5D Mark I-III, 7D 30D 40D 50D 60D 350D 400D 450D 500D 550D 600D 650D 1000D 1100D (Electronics)
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