Carl Zeiss Vario-Sonnar T* 40-80 mm f/ 3.5 C/Y Lens Volantino

Pagina di 2
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
®
 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
®
 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
®
 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
®
 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
®
  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