Manual focus and manual aperture. - ZEISS world class optical design. - Harmonious bokeh for magic
out of focus images. - Cine-style focus and aperture scales on both sides of the lens barrel. - Expanded focus mark
spacing for precise follow-focus. - Calibrated (one to one) focus scales. - Standard cinema 95mm Front Mount.
Full-Frame 24x36 coverage. - Canon EF/ Nikon F mount. - Available with metric or imperial scales.


Virtually distortion-free optics

Dramatic perspectives and a view from extraordinary image angles. The 21mm lenses open upnew 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.

Elaborate stray light reduction

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 latest technology 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.

Floating Elements Design

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.

Excellent image quality

The 21mm 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.

Precise manual focus

Manually focusing a lens means controlling the image result from your fingertips. A good ergonomic design makes
all the difference. The 21mm 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 and coherent,
thus also supporting the intuitive interaction with the focal plane. The precise engraving in meter and feet are hand painted
like expensive exotic cinema primes.