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Amazon.com : Pentax D FA 21mmF2.4ED Limited DC WR Silver Ultra-Wide-Angle Single Focus Lens [for use with Full Frame DSLR ] Limited Lens, machined Aluminum Lens Barrel, (28050) : Electronics
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Amazon.com : HD PENTAX-DA☆11-18mmF2.8ED DC AW Ultra-wide-angle zoom lens 17-27.5mm (Equivalent to 35mm format) All Weather resistant Extra-sharp High-contrast images Free of flare and ghost images Smooth, quiet AF : Electronics
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Amazon.com : HD PENTAX-DA☆11-18mmF2.8ED DC AW Ultra-wide-angle zoom lens 17-27.5mm (Equivalent to 35mm format) All Weather resistant Extra-sharp High-contrast images Free of flare and ghost images Smooth, quiet AF : Electronics