Carl Zeiss Touit 12 mm f/ 2.8 Lens Brochure

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Vario-Sonnar
®
 T* 3.5-4.5/70-200
       
48 to film
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CONTAX
®
 N
The Vario-Sonnar
®
 T* f/3.5-4.5/70-200 lens by Carl 
Zeiss is a convenient tele zoom for the Contax N 
autofocus SLR system. 
It is designed with the motives and needs of the 
demanding travelling photographer in mind. So it has 
a durable precision barrel, but is relatively lightweight 
and small, especially in transport mode. Filters with 
67 mm thread can be used at any focal length without 
vignetting. 
The Vario-Sonnar
®
 T* f/3.5-4.5/70-200 lens is 
equipped with an internal autofocus drive motor. The 
autofocus can be switched off  if desired. 
The Vario-Sonnar
®
 T* f/3.5-4.5/70-200 lens produces 
high image quality which is available at all focal 
lengths even at maximum f-stop in the center of the 
image. To achieve this high level of performance, 
Zeiss used optical glass types with anomalous partial 
dispersion for several lens elements. 
The Carl Zeiss T* multi-layer anti-reflex coating of lens 
surfaces, combined with stray light absorbing 
mechanical elements in the lens barrel, enable brilliant 
images with vibrant colors. 
Preferred use: general photography, portraits, travel, 
tourism
Cat. No. of lens 10 47 70 Entrance pupil*
Number of elements 14 Position W = 56.9 mm behind the first lens vertex
Number of groups 11 T = 174.0 mm behind the first lens vertex
Max. aperture f/3.5-4.5 Diameter W = 19.9 mm
Focal length W = 72.2 mm, T = 193.8 mm T = 41.5 mm
Negative size 24 x 36 mm Exit pupil*
Angular field 2w* 
W = width 27°, height 18°, diagonal 33° Position W = 26.7 mm in front of the last lens vertex
T = width 11°, height 7.1°, diagonal 13° T = 27.6 mm in front of the last lens vertex
Min. aperture 22 Diameter W = 18.7 mm
Camera mount Contax N T = 18.7 mm
Filter connection M 67 x 0.75 Position of principal planes*
Focusing range infinity to 1 m H W = 51.5 mm behind the first lens vertex
Working distance (between T = 66.0 mm in front of the last lens vertex
mechanical front end of H' W = 31.7 mm in front of the last lens vertex
lens and subject) W = 0.9 m, T = 0.8 m T = 133.9 mm in front of the last lens vertex
Close limit field size W = 325 mm x 494 mm Back focal distance W = 40.4 mm
T = 155 mm x 233 mm T = 60.0 mm
Max. scale W = 1 : 13.4 Distance between first
T = 1 : 6.5 and last lens vertex* W = 109.5 mm
T = 134.4 mm
Weight 620 g
*at infinity