Carl Zeiss Touit 12 mm f/ 2.8 Lens Broschüre
Vario-Sonnar
®
T* 3.5-4.5/28-70
CONTAX
®
/YASHICA
®
mount
The Carl Zeiss Vario-Sonnar
®
T* 3.5-4.5/28-70 lens is
a compact high-performance zoom lens in the Contax
SLR system. It is the perfect choice for the travelling
photographer who prefers to use a general purpose
zoom lens as his or her standard optic, but still wants
to get the superior image quality associated with fixed
focal length lenses.
The Carl Zeiss Vario-Sonnar
SLR system. It is the perfect choice for the travelling
photographer who prefers to use a general purpose
zoom lens as his or her standard optic, but still wants
to get the superior image quality associated with fixed
focal length lenses.
The Carl Zeiss Vario-Sonnar
®
T* 3.5-4.5/28-70 lens
offers the focal length range most often used in 35 mm
photography, indoors and outdoors.
It combines the renowned image quality of a Carl Zeiss
lens and the durability of a metal lens barrel with a
moderate weight which is almost as low as that of a
high quality 50 mm f/1.4 standard lens.
photography, indoors and outdoors.
It combines the renowned image quality of a Carl Zeiss
lens and the durability of a metal lens barrel with a
moderate weight which is almost as low as that of a
high quality 50 mm f/1.4 standard lens.
Two separate precision rings are used for smooth
focusing and zooming respectively, thus allowing to
adjust one without affecting the other unintentionally.
The special makro-function enables close-ups to cover
object fields down to the size of e.g. a tulip blossom or
an identity card (approx. 7 cm x 11 cm).
An aspheric lens element and a special optical glass
with anomalous partial dispersion are utilised to
achieve a superb imaging performance while keeping
the lens quite compact.
The large filter thread of M 67 allows for the use of
filters completely without blackening the corners of the
image - even with the lens set to the wide angle
position.
focusing and zooming respectively, thus allowing to
adjust one without affecting the other unintentionally.
The special makro-function enables close-ups to cover
object fields down to the size of e.g. a tulip blossom or
an identity card (approx. 7 cm x 11 cm).
An aspheric lens element and a special optical glass
with anomalous partial dispersion are utilised to
achieve a superb imaging performance while keeping
the lens quite compact.
The large filter thread of M 67 allows for the use of
filters completely without blackening the corners of the
image - even with the lens set to the wide angle
position.
_________________________________________________________________________________________
Cat. No. of lens
10 47 63
Entrance pupil*
Number of elements
9
Position
W = 28.1 mm behind the first lens vertex
Number of groups
8
T = 18.5 mm behind the first lens vertex
Max. aperture
f/3.5-4.5
Diameter
W = 8.0 mm
Focal length
W = 28.0 mm, T = 67.9 mm
T = 14.7 mm
Negative size
24 x 36 mm
Exit pupil*
Angular field*
W = width 67°, height 47°, diagonal 2w 77°
Position
W = 8.5 mm in front of the last lens vertex
T = width 30°, height 25°, diagonal 2w 35°
T = 20.6 mm in front of the last lens vertex
Min. aperture
22
Diameter
W = 14.4 mm
Camera mount
Contax/Yashica mount
T = 17.7 mm
Filter connection
M 67 x 0.75
Position of principal planes
Focusing range
infinity to 0.5 m
H
W = 40.4 mm in front of the first lens vertex
Working distance (between
T = 29.8 mm behind the first lens vertex
mechanical front end of H'
W = 13.4 mm behind the last lens vertex
lens and subject)
0.4 m
T = 7.1 mm in front of the last lens vertex
Close limit field size
W = 370 x 566 mm
Back focal distance
W = 41.5 mm
T = 149 x 223 mm
T = 60.8 mm
Max. scale
W = 1:15
Distance between first
T = 1:6.2
and last lens vertex
W = 79.5 mm
T = 55.5 mm
T = 55.5 mm
Weight
320 g
_________________________________________________________________________________________
* at infinity W= Wide T= Tele