Carl Zeiss Touit 12 mm f/ 2.8 Lens Broschüre

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Distagon
®
 T
* f/1.4 - 35 mm
  
Although its speed is four times greater than that 
of a standard lens with an initial aperture of f/2.8 - 
this 35 mm Distagon
®
 T
* f/1.4 lens provides 
surprisingly high image quality. Distortion, the great 
drawback of retrofocus lenses of which the Zeiss 
Distagon lenses are an example, is superbly 
corrected. 
Another new feature of this Distagon
®
 lens is the 
differential motion of one lens group, which 
perceptibly counteracts the decrease in image 
quality in the peripheral zones when the lens is 
focused to short distances. This made it possible to 
set the close-range limit only 18 cm from
the front lens vertex, resulting in the remarkably 
large image scale of 1:5. 
Thanks to its high speed, the Distagon
®
 f/1.4 lens 
can be used for many purposes by the demanding 
amateur, the creative photographer and the 
journalist. As photographers have always regarded 
a 35 mm high-performance lens as indispensable 
for their work, they will certainly include this new 
Distagon
®
 lens with its extended range of 
applications in their standard equipment.
Cat. No. of lens:
10 48 40
Weight:
approx. 600 g
Number of elements:
9 (1 aspheric surface)
Focusing range:
 to 0.3 m
Number of groups:
8
Aberration correction for close range by floating element
Max. aperture:
f/1.4
Entrance pupil:
Focal length:
36.5 mm
Position:
32.5 mm behind the first lens vertex
Negative size:
24 x 36 mm
Diameter:
25.1 mm
Angular field 2w:
62º 30' diagonal
Exit pupil:
Mount:
focusing mount with bayonet;
Position:
28.0 mm in front of the last lens vertex
TTL metering either at full aperture
Diameter:
47.3 mm
or in stopped-down position.
Position of principal planes:
Aperture priority/Shutter priority/
H:
48.3 mm behind the first lens vertex
Automatic programs
H':
0.5 mm behind the last lens vertex
(Multi-Mode Operation)
Back focal distance:
36.9 mm
Aperture scale:
1.4 - 2 - 2.8 - 4 - 5.6 - 8 - 11 - 16
Distance between first and
Filter connection:
clip-on filter, diameter 70 mm
last lens vertex:
80.0 mm
screw thread M 67 x 0.75