Carl Zeiss Touit 12 mm f/ 2.8 Lens Broschüre
Vario-Sonnar
®
T* 4.5/45-90
CONTAX
®
645
The Vario-Sonnar® T* 4,5/45-90 lens is an allround
autofocus lens for the Contax 645. It is particularly
well-suited for demanding photojournalistic work,
where prints may be enlarged to poster size with fine
details which cannot be reliably captured with 35 mm
cameras. Weddings, travel, and industrial photos for
annual reports and business presentations are typical
tasks of this kind, where medium format has proven to
be indispensable. Imaging performance of the
Vario-Sonnar® T* 4,5/45-90 lens is on the level of
fixed focal length lenses. Both sharpness and brilliance
satisfy even high demands, while distortion is very well
corrected.
autofocus lens for the Contax 645. It is particularly
well-suited for demanding photojournalistic work,
where prints may be enlarged to poster size with fine
details which cannot be reliably captured with 35 mm
cameras. Weddings, travel, and industrial photos for
annual reports and business presentations are typical
tasks of this kind, where medium format has proven to
be indispensable. Imaging performance of the
Vario-Sonnar® T* 4,5/45-90 lens is on the level of
fixed focal length lenses. Both sharpness and brilliance
satisfy even high demands, while distortion is very well
corrected.
The combination of these characteristics produces an
outstanding lens for forensic documentation. Straylight
absorbing measures are integrated with great care to
enable this multi-element Vario-Sonnar® T* 4,5/45-90
lens to deliver professional quality results even under
unfavourable lighting conditions.
outstanding lens for forensic documentation. Straylight
absorbing measures are integrated with great care to
enable this multi-element Vario-Sonnar® T* 4,5/45-90
lens to deliver professional quality results even under
unfavourable lighting conditions.
Preferred use: demanding photojournalistic work,
weddings, travel, street photography, people, industrial
and forensic documentation
weddings, travel, street photography, people, industrial
and forensic documentation
Cat. No. of lens
10 47 71
Entrance pupil*
Number of elements
12
Position
W = 39.1 mm behind the first lens vertex
Number of groups
10
T = 31.1 mm behind the first lens vertex
Max. aperture
f/4.5
Diameter
W = 10.2 mm
Focal length
W = 45.9 mm, T = 87.5 mm
T = 18.6 mm
Negative size
41.5 x 56 mm
Exit pupil*
Angular field 2w*
W = width 63°, height 49°, diagonal 74°
Position
W = 16.4 mm in front of the last lens vertex
T = width 36°, height 27°, diagonal 43°
T = 16.4 mm in front of the last lens vertex
Min. aperture
32
Diameter
W = 17.2 mm
Camera mount
Contax 645
T = 24.7 mm
Filter connection
M 95 x 1
Position of principal planes*
Focusing range
infinity to 0.5 m
H
W = 57.6 mm behind the first lens vertex
Working distance (between
T = 52.5 mm behind the first lens vertex
mechanical front end of
H'
W = 14.7 mm behind the last lens vertex
lens and subject)
0.32 m
T = 11.5 mm behind the last lens vertex
Close limit field size
W = 345 mm x 469 mm
Back focal distanceW = 60.7 mm
T = 175 mm x 236 mm
T = 99.0 mm
Max. scale
W = 1 : 8.1
Distance between first
T = 1 : 4.2
and last lens vertex*W = 111.3 mm
T = 76.1 mm
Weight
1140 g
* at infinity