Carl Zeiss Touit 12 mm f/ 2.8 Lens 数据表
Sonnar
®
T* 2.8/85
CONTAX
®
/YASHICA
®
mount
The Carl Zeiss Sonnar
®
T* 2.8/85 lens is the most
compact telephoto lens in the Contax SLR system. It is
as small and lightweight as a 50 mm f/1.4 standard
lens. And the price is equally attractive. Thus it is a
great lens for travelling with the Contax and it is widely
used in applications like photojournalism. 85 mm is a
very popular and flexible focal length for portrait
photography, too, especially on location.
The Carl Zeiss Sonnar
as small and lightweight as a 50 mm f/1.4 standard
lens. And the price is equally attractive. Thus it is a
great lens for travelling with the Contax and it is widely
used in applications like photojournalism. 85 mm is a
very popular and flexible focal length for portrait
photography, too, especially on location.
The Carl Zeiss Sonnar
®
T* 2.8/85 lens delivers
stunning sharpness and contrast - even at full aperture
of f/2.8. In combination with modern color films or
professional digital receivers this lens can produce
photos with details delivered so clear that the images
can be easily printed in full page size -
of f/2.8. In combination with modern color films or
professional digital receivers this lens can produce
photos with details delivered so clear that the images
can be easily printed in full page size -
even two-page spreads are possible - within high
quality brochures and on covers of glossy magazines.
The results are convincing.
The Carl Zeiss Sonnar
quality brochures and on covers of glossy magazines.
The results are convincing.
The Carl Zeiss Sonnar
®
T* 2.8/85 lens comes with a
precision barrel made of metal. This ensures smooth
and precise focusing and long lasting performance,
even if the lens is used extensively and is subjected to
considerable fluctuations of temperature and humidity
which tends to happen quite often in travel and
photojournalistic photography. The Carl Zeiss Sonnar
and precise focusing and long lasting performance,
even if the lens is used extensively and is subjected to
considerable fluctuations of temperature and humidity
which tends to happen quite often in travel and
photojournalistic photography. The Carl Zeiss Sonnar
®
T* 2.8/85 lens is a must-have item for photographers
seeking high performance in a small and lightweight
package.
seeking high performance in a small and lightweight
package.
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Cat. No. of lens
10 11 11
Number of elements
5
Close limit field size
223 mm x 333 mm
Number of groups
4
Max. scale
1 : 9.3
Max. aperture
f/2.8
Entrance pupil*
Focal length
87.6 mm
Position
36.6 mm behind the first lens vertex
Negative size
24 x 36 mm
Diameter
31.2 mm
Angular field*
width 23°, height 16°,
Exit pupil*
diagonal 2w 27°
Position
20.5 mm in front of the last lens vertex
Min. aperture
22
Diameter
22.3 mm
Camera mount
Contax/Yashica mount
Position of principal planes*
Filter connection
M 55 x 0.75
H
0.6 mm in front of the first lens vertex
Focusing range
infinity to 1 m
H'
46.6 mm in front of the last lens vertex
Working distance (between mechanical front end of
Back focal distance
41.0 mm
lens and subject)
0.9 m
Distance between first
and last lens vertex
and last lens vertex
47.0 mm
Weight
260 g
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* at infinity