佳能公布EF 20mm F1.4、EF 12-24mm F4.3-5.6镜头专利近日,佳能在日本公布EF 20mm F1.4、EF 12-24mm F4.3-5.6镜头专利,专利编号为2019-128526。据了解,该专利涉及的两款镜头均适用于佳能全画幅单反相机。 佳能EF 20mm F1.4镜头专利详情: 焦距:20.50mm 光圈:1.44 半画角:46.54 像高:21.64mm 镜头全长:134.70mm 后焦距:36.81mm 佳能EF 12-24mm F4.3-5.6镜头专利详情: 焦距:12.40–18.00–23.64mm 光圈:4.35–4.96–5.60 半画角:60.18–50.25–42.47 像高:21.64mm 镜头全长:142.18–132.82–131.14mm 后焦距:36.14–44.23–52.29mm 分享到:
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