IT之家 6 月 17 日消息，适马现已发布旗下 Sigma 17-40mm F1.8 DC｜ART APSC 相机镜头，该机将于下月中旬上市，提供佳能 RF、富士 X、徕卡 L、索尼 E 卡口版本，美国市场定价为 919 美元（IT之家注：现汇率约合 6601 元人民币）。
这款镜头等效 25.5-60mm，使用 11 组 17 片光学结构，其中包括 4 片 SLD 超低色散镜片和 4 片非球面镜片，镜头重量为 525 克，使用 67mm 滤镜，配备 HLA 自动对焦马达。
IT之家附镜头样张如下：
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