Carl Zeiss Distagon T* 2.8/21 ZF.2 SLR Super wide lens Black

Carl Zeiss Distagon T* 2.8/21 ZF.2 SLR Super wide lens Black

MPN: 1767-823
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德国
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技术特点

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重量和尺寸

直径 87 mm

聚焦系统

固定焦距 21 mm
最大光圈 22
对角线视角(最大) 90 °
最近聚焦距离 0.22 m
组件应用 SLR
最小光圈 2.8

另外

镜头结构(元素 /组) 16/13
21 mm, f/2.8 – f/22, 0.22 m – ∞, M 82 x 0.75, ø 87, 600g <b>Tamer of the infinite horizon</b>

The Distagon T* 2,8/21 is a super wide-angle lens and is the leader in its range. Thanks to its aperture of 2.8 and its non-reflecting and virtually distortion-free characteristics, it will help you create spectacular compositions full of variety, dramatic contrast and deep, vivid colors.

<b>Virtually distortion-free optics</b>

Dramatic perspectives and a view from extraordinary image angles – ZEISS lenses open up new composition possibilities. Distortion would disrupt the composition because straight lines, whose image does not go through the image center, would be reproduced with a curved shape. This annoying effect is accordingly and largely compensated through elaborate optical designs at all focal lengths.

<b>Elaborate stray light reduction</b>

Rich, vibrant colors are vital to creating a lasting impression. Stray light in the lens, however, would lead to a brightening of the image, which is particularly visible in shadow areas. Image contrast is lowered; the image appears dull and bleached. We combine various, elaborate techniques to reduce unwanted stray light. For example, all lens elements are coated with the famous ZEISS T*® anti-reflective coating. Additionally, a jet black special paint is applied by hand to all lens element edges to ensure that reflections are prevented from the start.

<b>Floating Elements Design</b>

Today’s camera technologies and high-resolution sensors demand continuous improvement of lens performance. Thanks to the use of the latest floating element design principles, optical aberration effects in ZEISS lenses are reduced to a minimum throughout their entire focusing range. This is achieved by variation of the axial distance between individual lens elements or groups. This adjustment of the lens-to-lens distance is coupled to the distance setting to ensure correct compensation at all times. The mechanical construction of these lenses is extremely complex and they must be assembled with utmost precision – both of which are key competencies of ZEISS.

<b>Excellent image quality</b>

The ZEISS range of T*® lenses offers the highest possible standards in terms of performance, reliability and, of course, image quality. Quite simply, they are superior in every way. You can count on highly advanced flare control for crisp and brilliant images, for example. And virtually zero geometric distortion, ensuring precise accuracy when reproducing shapes – especially useful when photographing products and architecture.

<b>Precise manual focus</b>

Manually focusing a lens means controlling the image result from your fingertips. A good ergonomic design makes all the difference. ZEISS lenses stand out with their large rotation angle which enables precise focusing. Changes are immediately visible in the viewfinder. The high-quality focusing mechanism moves smoothly without play, thus also supporting the intuitive interaction with the focal plane. The precise engraving in meter and feet, and the depth of focus scale provide additional support for manually focusing.
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