Carl Zeiss Touit 12 mm f/ 2.8 Lens Scheda Tecnica
Tele-Apotessar
®
T* 4/400
CONTAX
®
N
Fast, yet handy apochromatic telephoto lenses have
become indispensable optics for both sports and
wildlife photographers.
For the Contax N SLR system, Carl Zeiss has
designed an all new autofocus lens Tele-Apotessar®
T* 4/400. It is relatively fast, yet handy enough to be
used without a tripod. A filter slot accepts filters of
rather small diameter. The lens Tele-Apotessar® T*
4/400 produces images of stunning sharpness and
brilliance delivering high image quality even fully open,
and over the entire frame. Field flatness is
immaculate. And so is field illumination. The resolution
of fine detail impresses even very demanding
photographers.
become indispensable optics for both sports and
wildlife photographers.
For the Contax N SLR system, Carl Zeiss has
designed an all new autofocus lens Tele-Apotessar®
T* 4/400. It is relatively fast, yet handy enough to be
used without a tripod. A filter slot accepts filters of
rather small diameter. The lens Tele-Apotessar® T*
4/400 produces images of stunning sharpness and
brilliance delivering high image quality even fully open,
and over the entire frame. Field flatness is
immaculate. And so is field illumination. The resolution
of fine detail impresses even very demanding
photographers.
The distortion is very well corrected. This lens‘s high
performance ist kept virtually constant over the entire
focussing range from infinity to the close-up limit.
Utilising the latest in optical glass technology and
precision manufacturing, the Tele-Apotessar® T*
4/400 lens marks a summit in the development of
Zeiss Tele-Apotessar® lens designs. Its performance
challenges the quality of the best color films to their
limits.
performance ist kept virtually constant over the entire
focussing range from infinity to the close-up limit.
Utilising the latest in optical glass technology and
precision manufacturing, the Tele-Apotessar® T*
4/400 lens marks a summit in the development of
Zeiss Tele-Apotessar® lens designs. Its performance
challenges the quality of the best color films to their
limits.
Preferred use: Sports, wildlife, photojournalism,
fashion, advertising, documentation of inaccessible
objects and actions.
fashion, advertising, documentation of inaccessible
objects and actions.
Cat. No. of lens
10 45 58
Close limit field size
148 mm x 221 mm
Number of elements
7
Max. scale
1 : 6.2
Number of groups
6
Entrance pupil*
Max. aperture
f/4
Position
385.7 mm behind the first lens vertex
Focal length
400.0 mm
Diameter
98.2 mm
Negative size
24 x 36 mm
Exit pupil*
Angular field 2w*
width 5.2°; height 3.4°;
Position
49.7 mm in front of the last lens vertex
diagonal 6.2°
Diameter
35.4 mm
Min. aperture
32
Position of principal planes*
Camera mount
Contax N
H
729.7 mm behind the first lens vertex
Filter connection
insertable filter
H'
306.8 mm in front of the last lens vertex
Focussing range
infinity to 2.9 m
Back focal distance
93.2 mm
Working distance (between mechanical front end of
Distance between first
lens and subject)
2.56 m
and last lens vertex
232.8 mm
Weight
3580 g
* at infinity