Pentax APS-C DSLR專用超廣角變焦鏡「DA 12-24mm F4 ED AL」正式發表
http://www.pentaximaging.com/products/product_details/camera_lens--smc_P-DA_12-24mm_F4.0_ED.2F.AL_%28IF%29/reqID--6919635/subsection--Digital_35mm_zoom
http://www.pentaximaging.com/products/product_features/camera_lens--smc_P-DA_12-24mm_F4.0_ED.2F.AL_%28IF%29/reqID--6919635/subsection--Digital_35mm_zoom
http://www.pentaximaging.com/products/product_specs/camera_lens--smc_P-DA_12-24mm_F4.0_ED.2F.AL_%28IF%29/reqID--6919635/subsection--Digital_35mm_zoom

http://dc.watch.impress.co.jp/cda/lens/2005/08/22/2125.html
http://letsgodigital.org/en/news/articles/story_4134.html
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「DA 12-24mm F4 ED AL」
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焦距：12-24mm(135換算 18.5∼37mm)
鏡片構成 11群13枚(含特殊低分散(ED：Extra-low Dispersion)鏡片1枚及非球形鏡片2枚)
視角 99 - 61
光圈葉片 8枚
最小光圈 F22
最近拍攝距離 0.3m
最大倍率 0.12倍
濾鏡口徑 77mm
尺寸 φ84×87.5mm
重量 430g

日本發售預定日
10月中旬
預想市價7.5萬-8萬日圓