原文网址：http://www.pentaxforums.com/news/sigma-announces-30mm-f14-art-for-pentax.html

.
适马日本刚刚公布了宾得和索尼卡口即将推出其30毫米F1.4 DC HSM镜头，属于艺术系列。这款镜头是去年发布的适马、佳能和尼康相机卡口。它的前身是现已停产适马30mm F1.4 EX DC HSM，最流行的适马镜头的一个型号以前可用于宾得。

这款镜头是专为APS-C相机，因此它是相当小巧，尺寸为2.5“长（63毫米，W / O型罩），并在约一磅（435克）称重。有了30mm的焦距，它提供的视图一个“正常”的领域，提供了大致相同的放大倍率为你的眼睛看到的，这使它成为一个很好的日常定焦镜头，像50毫米镜头在胶片机年代，其F1.4的最大光圈可以让您全力以赴与背景虚化，并意味着这将是弱光摄影的绝佳选择。

随着适马全球视野系列镜头的一部分，这个新30毫米采用重新设计的桶，全新的光学设计，圆形光圈叶片，以及最新的镜头技术，如所有的卡口，包括宾得HSM（静音自动对焦）的支持。老版本的镜头并不支持宾得相机无声的自动对焦，尽管在其名称中的“HSM”称号。

据日本适马的新闻稿，这个镜头将被正式发布2014年2月26日。我们还没有一个样品在美国，尽管我们相当有信心，这个镜头将售价499美元像其他的卡口。

对于全规格的新适马30mm艺术系列，参阅了我们的第三方镜头数据库条目。这是一个非常令人兴奋的镜头，我们一定会测试，一旦它被上市。如果我们收到一个确认样品或预购链接本文将进行更新。

英文原文：

Sigma Japan has just announced the imminent launch of its 30mm F1.4 DC HSM Art lens for the Pentax and Sony mounts.  This lens was released last year for Sigma, Canon, and Nikon cameras.  It is the successor to the now-discontinued Sigma 30mm F1.4 EX DC HSM, one of the most popular Sigma primes previously available for Pentax.

This lens is designed exclusively for APS-C cameras, and as such it is rather compact, measuring 2.5″ long (63mm, w/o hood) and weighing in at about a pound (435g).  With a focal length of 30mm, it offers a “normal” field of view, delivers roughly the same magnification as what your eyes see.  This makes it an excellent everyday prime lens, like 50mm lenses were in the film days.  Its maximum aperture of F1.4 lets you go all out with the bokeh and means it will be a great choice for low-light photography.

As part of the Sigma Global Vision series of lenses, this new 30mm features a redesigned barrel, new optical design, rounded aperture blades, and the latest lens technologies such as HSM (silent autofocus) support for all mounts, including Pentax.  The old version of this lens did not support silent autofocus on Pentax cameras despite the “HSM” designation in its name.

According to Sigma Japan’s press release, this lens will officially be released on February 26th, 2014.  We do not yet have an ETA for the US, though we are fairly confident that this lens will be priced at $499 like for other mounts.

For the full specifications of the new Sigma 30mm Art, visit its entry in our third-party lens database.  This is a very exciting lens and we will be sure to review it once it is released.  This article will be updated if we receive a confirmed ETA or pre-order link.