Carl Zeiss Touit 12 mm f/ 2.8 Lens Техническое Руководство

®

 T

* f/2 - 100 mm

  

A high-speed lens with superb image quality. The 
demand for a focal length of 100 mm is growing 
because of its many fields of application: portraiture 
work, snapshots, architectural and landscape 
photography. 

With its relative aperture of 1:2, the new Zeiss lens 
permits short shutter speeds to be used even in bad 
lighting conditions. The low depth of field resulting 
at full aperture can be employed as an interesting 
means of picture composition.

Cat. No. of lens: 10 21 58 Weight: approx. 670 g
Number of elements: 6 Focusing range: 

∞

 to 1 m

Number of groups: 5 Entrance pupil:
Max. aperture: f/2 Position: 59.0 mm behind first lens vertex
Focal length: 99.9 mm Diameter: 50.0 mm
Negative size: 24 x 36 mm Exit pupil:
Angular field 2w: 24º Position: 32.8 mm in front of the last lens vertex
Mount: focusing mount with bayonet; Diameter: 46.9 mm

TTL metering either at full aperture Position of principal planes:
or in stopped-down position. H: 48.8 mm behind first lens vertex
Aperture priority/Shutter priority/ H': 42.0 mm in front of last lens vertex
Automatic programs Back focal distance: 57.9 mm
(Multi-Mode Operation) Distance between first and

Aperture scale: 2 - 2.8 - 4 - 5.6 - 8 - 11 - 16 - 22 last lens vertex: 67.7 mm
Filter connection: clip-on filter, diameter 70 mm

screw thread M 67 x 0.75