SIGMA 24-70mm F2.8 DG DN是一款高性能的标准变焦镜头，适用于多种索尼相机。其F2.8的大光圈非常适合低光拍摄。该镜头采用了热稳定复合材料（TSC），以应对高频率使用时的耐热胀冷缩问题，并且重量达到了1020克。该镜头最大直径为88mm，滤镜尺寸为82mm，长度为107.6mm。

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