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Panasonic GF1 + Lumix R Mount Adaptor + Leica Vario-Elmar-R 1:3.5/35-70
If you already have a Leica R lens this is a great way to put it to new use: GF1 with 20mmF1.7 on Amazon Panasonic GF1 + Voigtlander Color-Skopar 21mmF4