Carl Zeiss Touit 12 mm f/ 2.8 Lens Handbuch

®

 T* 2.8/90

                                 

56

®

  G mount

This lens features not only outstanding sharpness 
and brilliance, but also excellent field illumination 
even at full aperture. The Sonnar

®

 T* 2.8/90 lens 

with its field angle of 27º has been designed for 
the Contax G compact camera. The lens is 
particularly suitable for portrait photography, 
allowing successful head-and-shoulders and 
full-length portraits with a natural perspective.

In addition to portraiture, this lens can also be 
recommended for taking photographs at sporting 
events and the theater. The Sonnar

®

 T* 2.8/90 

lens has been designed for use with the autofocus 
connection of the Contax G compact cameras.

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Number of elements

5

Close limit field size

216 mm x 324 mm

Number of groups

4

Max. scale

1 : 9.0

Max. aperture

f/2.8

Entrance pupil*

Focal length

90.0 mm

Position

35.9 mm behind the first lens vertex

Negative size

24 x 36 mm

Diameter

31.7 mm

Angular field*

width 23°, height 15°,

Exit pupil*

diagonal 2w 27°

Position

22.0 mm in front of the last lens vertex

Min. aperture

22

Diameter

23.5 mm

Camera mount

Contax G

Position of principal planes*

Filter connection

M 46 x 0.75

H

2.5 mm behind the first lens vertex

Focusing range 

infinity to 1.0 m

H'

46.3 mm in front of the last lens vertex

Working distance (between mechanical front end of

Back focal distance

43.7 mm

lens and subject)

0.91 m

Distance between first
and last lens vertex

45.9 mm

Weight

240 g

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* at infinity