Carl Zeiss Touit 12 mm f/ 2.8 Lens Manuel

Vario-Sonnar

* f/3.3-4.0 28 - 85 mm

The 28-85 mm Vario-Sonnar

* f/3.3 - 4.0 lens

from Carl Zeiss ofters excellent image quality over
its entire focal length range - so good in fact that it
can be readily compared to lenses with fixed focal
lengths. Even at the minimum focusing range of
0.6 m, good results are still obtained.

Its sturdy mechanical design guarantees extreme
reliability in use. Like all Zeiss Vario

lenses for the

Contax

SLR Camera System, this is a Zeiss-

patented, one-touch zoom lens, i.e. the same ring
is used for zooming and focusing.
The large focal range of the 28 - 85 mm Vario
Sonnar

* f/3.3 - 4.0 lens from Carl Zeiss makes it

ideal for universal application, e.g. for architectural,
landscape and portrait photography.

Cat. No. of lens:

10 47 38

Entrance pupil*:

Number of elements:

Position:

a) 39.7 mm behind first lens vertex

Number of groups:

b) 40.4 mm behind first lens vertex

Max. aperture*:

f/3.3-4.0

Diameter:

a) 8.5 mm

Focal length*:

29.0-82.4 mm

b) 20.4 mm

Negative format:

24 x 36 mm

Exit pupil*:

Angular field 2w*:

29º-75º

Position:

a) 68.1 mm in front of last lens vertex

Mount:

focusing mount with bayonet;

b) 64.4 mm in front of last lens vertex

coupling system for automatic diaphragm

Diameter:

a) 32.5 mm

function; TTL metering either at full

b) 26.3 mm

aperture or in stopped-down position;

Position of principal planes*:

Aperture priority/Shutter priority

a) 61.0 mm behind first lens vertex

and automatic programs

b) 58.6 mm behind first lens vertex

(Multi-Mode Operation)

H':

a) 12.4 mm behind last lens vertex

Aperture scale:

3.3 - 5.6 - 8 - 11 - 16 - 22

b) 41.1 mm in front of last lens vertex

Scale of focal lengths:

28 - 35 - 40 - 50 - 60 - 85

Back focal distance:

41.4 mm

Filter connection:

filter thread M 82 x 0.75

Distance between first

Focusing range:

∞

to 0.6 m

and last lens vertex*:

a) 143.3 mm

Weight:

approx. 735 g

b) 99.7 mm

a) f = 28 mm, b) f = 85 mm, * at

∞