Sigma 30mm f/1.4 EX DC HSM 是一款專為 APS-C 數位單反相機設計的高性能定焦鏡。其 f/1.4 的大光圈在低光源環境下表現卓越，並能營造出柔美的散景效果。等效焦距約為 45mm–48mm（相對於全片幅），是街拍、人像及日常紀錄的理想「標準鏡」。

The Sigma 30mm f/1.4 EX DC HSM is a high-performance prime lens designed specifically for APS-C digital SLR cameras. With a large f/1.4 aperture, it excels in low-light conditions and creates a beautiful, shallow depth of field with smooth "bokeh." The focal length is equivalent to approximately 45mm–48mm on a full-frame camera, making it an ideal "normal" lens for street photography, portraits, and everyday use.

Technical Specifications / 技術規格

• Format / 格式: APS-C Only
• Focal Length / 焦距: 30mm
• Max Aperture / 最大光圈: f/1.4
• Min Aperture / 最小光圈: f/16
• Lens Construction / 鏡頭結構: 7 Elements in 7 Groups (7 群 7 枚)
• AF Motor / 對焦馬達: HSM (Hyper Sonic Motor)
• Filter Size / 濾鏡尺寸: 62mm
• Diaphragm Blades / 光圈葉片: 8 (Rounded / 圓形光圈)
• Min. Focus Distance / 最近對焦: 0.4m