PENTAX DA 18-270mm - Top 100 interesting lenses - YouTube
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HD PENTAX-DA FISH-EYE10-17mmF3.5-4.5ED: A fish-eye zoom lens for use with K-mount digital SLR cameras,featuring the latest HD Coating to further upgrade image quality, and a totally redesigned body|RICOH IMAGING
Pentax-DA 18-270mm F3.5-6.3 Review - Construction and Handling | PentaxForums.com Reviews (Mobile)