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The Sigma 30mm f 2.8 and the Sony Nex 7: A sharp kit lens for $199: Samples with 100% crops - Mike Kobal
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Amazon.com : Sigma 30mm F2.8 DN Lens for Sony E-mount Cameras (Black) : Compact System Camera Lenses : Electronics
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Testing Sigma 30 f2.8 on A7: you got a dirty cheap 35mm f2.8 FF autofocus lens!: Sony Alpha Full Frame E-mount Talk Forum: Digital Photography Review
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Amazon.com : Sigma 30mm F2.8 EX DN Art (Silver) for Sony SE : Compact System Camera Lenses : Electronics
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