配备f/1.4恒定大光圈、两枚XA极非球面镜片与ED低色散玻璃,结合Nano AR II涂层,全开下保持高分辨率与自然柔美的散景过渡。XD线性马达对焦快速安静,防尘防滴密封与11片光圈叶片确保严苛环境下的可靠操控和圆润光斑。最契合追求浅景深与弱光表达的肖像及街头摄影师,也适合需要平滑焦变化的视频创作者。
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