How mm works on lenses apsc vs ff: Sony Alpha SLR/SLT A-mount Talk Forum: Digital Photography Review
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Sigma announces 30mm F1.4 for E-mount and Micro 4/3 and 50-100mm F1.8 Art for APS-C: Digital Photography Review
Sigma 30mm f/1.4 EX DC HSM Canon mount APS-C Lens with both caps Very Good Condition | in Willowbrae, Edinburgh | Gumtree
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