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Sigma 18-50mm f2.8 EX DC Macro HSM (Pentax)

Sigma 18-50mm f2.8 EX DC Macro HSM (Pentax)

Sigma 18-50mm f2.8 EX DC Macro HSM (Pentax)

Details
Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements provide excellent correction of color aberrations. The super multi-layer lens coating reduces flare and ghosting, a common problem with digital cameras. High image quality is assured throughout the entire zoom range. An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the petal-type lens hood (supplied) plus circular polarizing filters.

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