Carl Zeiss Touit 12 mm f/ 2.8 Lens Technisches Handbuch
Vario-Sonnar
®
T
* f/3.4 35 - 70 mm
Superb image quality and - unusual for a zoom lens
- very low distortion throughout the entire focal
length range are the hallmarks of this 35-70 mm
Vario-Sonnar
- very low distortion throughout the entire focal
length range are the hallmarks of this 35-70 mm
Vario-Sonnar
®
T
* f/3.4 lens from Carl Zeiss. It is a
compact one-touch zoom lens, i.e. the same ring is
used for focusing and zooming. Its continuously
variable focal length from 35 mm to 70 mm and its
weight of approx. 475 g make this lens an
exceedingly light universal lens.
used for focusing and zooming. Its continuously
variable focal length from 35 mm to 70 mm and its
weight of approx. 475 g make this lens an
exceedingly light universal lens.
In addition, a macro setting permits you to take
pictures down to a reproduction ratio of 1:2.5.
pictures down to a reproduction ratio of 1:2.5.
To achieve this ratio in practice, the one-touch
zoom ring is first set to the focal length f = 35 mm
and 0.7 m. Turn ring clockwise until the slight
resistance is overcome and the macro range
marked in red is reached.
zoom ring is first set to the focal length f = 35 mm
and 0.7 m. Turn ring clockwise until the slight
resistance is overcome and the macro range
marked in red is reached.
Cat. No. of lens: 10 47 33 Entrance pupil:
Number of elements: 10 Position: a) 26.5 mm behind first lens vertex
Number of groups: 10 b) 39.5 mm behind first lens vertex
Max. aperture: f/3.4 Diameter: a) 19.7 mm
Focal length: 35.7-69.0 mm b) 10.3 mm
Negative format: 24 x 36 mm Exit pupil:
Angular field 2w: 63º-34º Position: a) 16.4 mm in front of last lens vertex
Spectral region: visible spectrum b) 16.4 mm in front of last lens vertex
Aperture scale: 3.4 - 5.6 - 8 - 11 - 16 - 22 Diameter: a) 22.7 mm
Mount: focusing helicoid with bayonet; b) 16.7 mm
Number of elements: 10 Position: a) 26.5 mm behind first lens vertex
Number of groups: 10 b) 39.5 mm behind first lens vertex
Max. aperture: f/3.4 Diameter: a) 19.7 mm
Focal length: 35.7-69.0 mm b) 10.3 mm
Negative format: 24 x 36 mm Exit pupil:
Angular field 2w: 63º-34º Position: a) 16.4 mm in front of last lens vertex
Spectral region: visible spectrum b) 16.4 mm in front of last lens vertex
Aperture scale: 3.4 - 5.6 - 8 - 11 - 16 - 22 Diameter: a) 22.7 mm
Mount: focusing helicoid with bayonet; b) 16.7 mm
TTL metering either at full aperture Position of principal planes:
or in stopped-down position. H: a) 35.0 mm behind first lens vertex
Aperture priority/Shutter priority/ b) 52.9 mm behind first lens vertex
Automatic programs H': a) 6.8 mm in front of last lens vertex
(Multi-Mode Operation). b) 4.9 mm behind last lens vertex
or in stopped-down position. H: a) 35.0 mm behind first lens vertex
Aperture priority/Shutter priority/ b) 52.9 mm behind first lens vertex
Automatic programs H': a) 6.8 mm in front of last lens vertex
(Multi-Mode Operation). b) 4.9 mm behind last lens vertex
Filter connection: thread M 67 x 0.75 mm, screw-in type Back focal distance: a) 62.2 mm
clip-on, diameter 70 mm b) 40.6 mm
Weight: approx. 475 g Distance between first
Minimum focusing range: 0.7 m, macro setting and last lens vertex: a) 61.8 mm
Minimum focusing range: 0.7 m, macro setting and last lens vertex: a) 61.8 mm
b) 100.6 mm
a) f = 70 mm b) f = 35 mm