SMC PENTAX-DA 55-300mmF4-5.8EDAPS-C專用，135換算84.5-460mm 3月下旬上市預定
歐美發表http://www.dpreview.com/news/0801/08012309pentaxlenses.asphttp://www.imaging-resource.com/NEWS/1201125660.htmlhttp://www.letsgodigital.org/en/18026/pentax-lens/http://www.steves-digicams.com/pr/pentax_01232008_k20-k200-lenses_pr.htmlhttp://www.dcresource.com/news/newsitem.php?id=3681
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