Sigma 18-50mm f/2.8-4.5 SLD Aspherical DC Optical Stabilized Lens for Sony DSLRs

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Sigma 18-50mm f/2.8-4.5 SLD Aspherical DC Optical Stabilized Lens for Sony DSLRs

Product Description :
Lens Construction 16 Elements in 12 Groups Angle of View 693 - 279 Number of Diaphragm Blades 7