Carl Zeiss Vario-Sonnar T* 40-80 mm f/ 3.5 C/Y Lens Broschüre
Distagon
®
T ** 2.8/45
64 to film
99
dia. 80
CONTAX
®
645
The Distagon
®
T
* 2.8/45 lens is the all-purpose wide
angle lens in the Contax
®
645 autofocus system. The
focal length of 45 mm on a Contax
®
645 medium
format camera produces images similiar to the 28 mm
lens on a Contax
lens on a Contax
®
35 mm SLR. The optical system of the
lens was designed using the latest technology,
incorporating internal focusing (IF). Thus it is the the
right optic for most scenic landscapes and cities. To
handle these subjects with perfection the Distagon
handle these subjects with perfection the Distagon
®
T
*
2.8/45 lens features a very uniform corner-to-corner
illumination, which is highly appreciated by professionals
who need to achieve a pleasing rendition of blue sky
areas in their landscape photos.
With a maximum aperture of f/2.8 the Distagon
With a maximum aperture of f/2.8 the Distagon
®
T
*
2.8/45 lens is fast enough for indoor wedding coverage
and similar tasks that ask for medium format image
quality.
On assignments like a wedding, which are fast paced
and cannot be repeated, the combination of medium
format and autofocus on Contax
format and autofocus on Contax
®
level excels. At the
other end of the aperture scale the Distagon
®
lens can
be stopped down to f/32, thus enabling stunning depth
of field effects in outdoor nature photography.
Distortion of the Distagon
Distortion of the Distagon
®
T
* 2.8/45 lens is kept
remarkably low – a particular strength of retrofocus
wide angle lenses from Carl Zeiss, that benefits the
professional travel photographer.
Preferred use: all-purpose, landscapes, cities, calendars,
travel, editorial, weddings
Cat. No. of lens:
10 49 44
Entrance pupil
*
Number of elements:
9
Position:
29.4mm behind the first lens vertex
Number of groups:
7
Diameter:
16.0mm
Max. aperture:
1:2.8
Exit pupil
*
Focal length:
45.5mm
Position:
33.0mm in front of the last lens vertex
Negative size:
41.5 x 56mm
Diameter:
33.1mm
Angular field 2w:
76°
Position of principal planes
*
:
Mount:
Contax 645 Mount
H:
52.8mm behind the first lens vertex
Filter connection:
screw-in type, thread M72 x 0.75
H':
14,7mm behind the last lens vertex
Focusing range:
∞
to 0.5m
Back focal distance
*
: 60.2mm
Aperture scale:
2.8 - 4 - 5.6 - 8 - 11 - 16 - 22 - 32
Distance between first
Weight:
approx. 821 g
and last lens vertex
*
: 100.0mm
*
at
∞