A member of the Chinese website Taobao is offering a service that modifies a Sigma DP compact camera and fits it with a Leica M-mount by removing the fixed lens and attaching an additional plate with the lens mount to the front of the camera. The service costs 1880 Yuan (around $300). You have to purchase the Sigma DP camera separately and send it in. Depending on the model, Sigma DP cameras cost less than $1000.
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