Lomography宣布推出全新的Petzval镜头，这是首款用于全画幅无反光镜相机的Petzval Art镜头。

“Petzval 55mm f / 1.7的特点是光学元件使得这款镜头非常适合获得水晶般的清晰度，甚至还有标志性的旋涡散景，”Lomography说。

镜头采用改进的设计，最大光圈为f / 1.7，在较大光圈下拍摄时会产生“细微，几乎画画”的渲染效果。镜头上的专用散景控制环提供7级调整，以便在出现的照片中显示散景。

镜头中还有一个无孔光圈光阑，使用Waterhouse光圈系统的特殊光圈板进行补充。这些印版包含在镜头中，可以制作不同形状的散景，以扩展您的创造力。

为了帮助制作电影，镜头还配备了长距离聚焦环，可在拍摄时平稳，准确地调整焦距。

Lomography Petzval 55毫米f / 1.7将采用黑色阳极氧化铝（399美元），缎面抛光黄铜（449美元）和黑色涂层黄铜（499美元），它将在索尼E，佳能RF和尼康Z支架上提供。预订现已开始，铝镜头计划于2019年7月开始发货，而黄铜版本将于2019年8月发货。

原文如下：Lomography announces Petzval lens for full-frame mirrorless systems，to aid in filmmaking the lens also features a long-throw focusing ring

Lomography has announced the new Petzval 55mm f/1.7 lens, its first Petzval Art lens created for full-frame mirrorless cameras.

“The Petzval 55mm f/1.7 is characterized by an optic that makes this lens perfect for attaining crystal clarity, even alongside its signature swirly bokeh,” Lomography says.

The lens features an improved design and a maximum aperture of f/1.7 that produces a ‘subtle, almost painterly” rendering when shooting at larger apertures.

A dedicated bokeh control ring on the lens provides 7 levels of adjustment for how bokeh shows up in your resulting photos.

There’s also a stopless aperture diaphragm in the lens that’s complemented by special aperture plates using the Waterhouse Aperture System. Included with the lens, these plates allow you to produce bokeh of different shapes to expand your creativity.

To aid in filmmaking projects, the lens also features a long-throw focusing ring for smoothly and accurately adjusting focus while you’re shooting.

The Lomography Petzval 55mm f/1.7 will come in black anodized aluminum ($399), satin-finished brass ($449), and black-painted brass ($499), and it’ll be available in Sony E, Canon RF and Nikon Z mounts. Pre-orders are open now, and the aluminum lens is scheduled to start shipping in July 2019 while the brass versions are set to ship in August 2019.