What some of us DSLR users don't realize until we've grown enough is just how wondrous and useful a good 50mm lens with a wide aperture is.
然而像我们这些单反相机的使用者在有足够多的经验之前，总是很难理解一个大光圈的50mm镜头是多么的实用。
It has a wide-aperture lens to capture as much light as possible, and the technology requires no clunky auto-focus mechanism. It adjusts exposure time automatically.
它的大光圈镜头可以摄入尽可能大的光量，所用技术并不需要笨重的自动对焦系统，曝光时间也是自动调节。
This new lens has vivid color, wide aperture, small depth of field.
新的标头，颜色鲜艳，大光圈，浅景深，很不错。
This new lens has vivid color, wide aperture, small depth of field.
新的标头，颜色鲜艳，大光圈，浅景深，很不错。
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