Carl Zeiss Sonnar T* 90 mm f/ 2.8 Lens Handbuch

Vario-Sonnar

®

 T

* f/4.5-5.6  100 - 300 mm

  

The use of optical glass with special properties 
ensures that this 100-300 mm Vario-Sonnar

®

 T

* 

f/4.5-5.6 lens provides excellent image quality over 
its entire image field and focal length range. 

Like all Zeiss Vario-Sonnar

®

 T

* lenses, this is a 

one-touch zoom lens, i.e., the same ring is used for 
zooming and focusing. 

As special types of glass with a somewhat higher 
temperature dependence have been used, a fixed 
infinity stop has been dispensed with. This 
guarantees perfect adjustment even in extreme 
temperatures. 

This relatively compact Vario-Sonnar

®

 T

* lens is 

ideal for a wide variety of photographic 
applications, but especially in nature and sports 
photography.

Entrance pupil*:

Number of elements:

12

Position:

a) 89.0 m behind first lens vertex

Number of groups:

7

b) 245.2 m behind first lens vertex

Max. aperture*:

f/4.5-5.6

Diameter:

a) 22.1 mm

Focal length*:

102-298 mm

b) 51.0 mm

Negative format:

24 x 36 mm

Exit pupil*:

Angular field 2w*:

24º-8º

Position:

a) 23.7 mm in front of last lens vertex

Spectral region:

visible spectrum

b) 29.1 mm in front of last lens vertex

Aperture scale:

4.5 - 8 - 11 - 16 - 22 - 32

Diameter:

a) 13.8 mm

Mount:

focusing helicoid with bayonet.

b) 17.6 mm

Aperture priority/Shutter

Position of principal planes*:

priority/Automatic programs

H:

a) 27.6 mm behind first lens vertex

(Multi-Mode Operation).

b) 323.7 mm in front of first lens vertex

Filter connection:

screw-in type, thread M 67 x 0.75

H':

a) 62.0 mm in front of last lens vertex

clip-on type, diameter 70 mm

b) 225.0 mm in front of last lens vertex

Focusing range:

∞

 to 1.5 m

Back focal distance*:

a) 40.0 mm

Weight:

approx. 925 g

b) 73.6 mm

Distance between first

a) 144.8 mm

and last lens vertex*:

b) 162.1 mm

a) f = 100 mm, b) f = 300 mm, * at 

∞