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Sigma announces pricing, availability of its MC-21 SA- and EF- L-mount adapters: Digital Photography Review
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Amazon.com : Haoge Manual Lens Mount Adapter for 42mm M42 Mount Lens to Sigma SA Mount Camera Such as SD14, SD15, SD1, SD1 Merrill, SD Quattro, SD Quattro H, SA-300, SA-300N, SA-5,
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SA-M43 Adapter For Sigma SA SD mount lens to Micro 4/3 M4/3 Olympus Panasonic Camera GF5 E-P5 E-M5 - AliExpress
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