Carl Zeiss Touit 12 mm f/ 2.8 Lens Folleto
Performance data:
Makro-Sonnar
Makro-Sonnar
®
T* 2.8/100
Cat. No. 10 78 88
Modulation transfer T as a function of image height u.
Slit orientation:
sag
White light. Spatial frequencies R = 10, 20 and 40 cycles/mm
tan
f-number
k = 2.8
M 1:10
f-number
k = 5.6
M 1:10
T (%)
T (%)
u (mm)
u (mm)
0
20
40
60
80
100
0
5
10
15
20
0
20
40
60
80
100
0
5
10
15
20
Relative illuminance
M 1:10
E (%)
u (mm)
0
20
40
60
80
100
0
5
10
15
20
k = 2.8
k = 5.6
Distortion in % of image height u
M 1:10
V
u (mm)
-2,0
-1,0
0,0
1,0
2,0
0
5
10
15
20