LEICA SUPER ELMAR-M 21mm f/3.4 ASPH.
MTF-graphs
The MTF is indicated at full aperture, at f/2,8 and f/5,6
at long taking distances (infinity). Shown is the contrast
in percentage for 5, 10, 20 and 40 lp/mm accross the
height of the 35 mm film format, for tangential (dotted
line) and sagittal (solid line) structures, in white light.
The 5 and 10 lp/mm will give an indication regarding
the contrast ratio for large object structures. The 20
and 40 lp/mm records the resolution of finer and finest
object structures.
tangential structures
sagittal structures
3
0
3
6
9
12
15
18
21
Y'[mm]
0
20
40
60
80
100
[%]
Blende 2,0
Apo-Summicron-M 1:2,0/50mm ASPH.
Brennweite 50 mm
0
3
6
9
12
15
18
21
Y' [mm]
0
20
40
60
80
100
[%]
Blende 2,8
0
3
6
9
12
15
18
21
Y'[mm]
0
20
40
60
80
100
Blende 5,6
[%]
0
3
6
9
12
15
18
21
Y'[mm]
0
20
40
60
80
100
[%]
Vignettierung
2,0
2,8
5,6
0
3
6
9
12
15
18
21
Y'[mm]
-5
-4
-3
-2
-1
0
1
2
3
4
5
[%]
Relative Verzeichnung
0
3
6
9
12
15
18
X'[mm]
0
3
6
9
12
Y'[mm]
Effektive Verzeichnung
f/2.0
0
3
6
9
12
15
18
21
Y'[mm]
0
20
40
60
80
100
[%]
Blende 2,0
Apo-Summicron-M 1:2,0/50mm ASPH.
Brennweite 50 mm
0
3
6
9
12
15
18
21
Y' [mm]
0
20
40
60
80
100
[%]
Blende 2,8
0
3
6
9
12
15
18
21
Y'[mm]
0
20
40
60
80
100
Blende 5,6
[%]
0
3
6
9
12
15
18
21
Y'[mm]
0
20
40
60
80
100
[%]
Vignettierung
2,0
2,8
5,6
0
3
6
9
12
15
18
21
Y'[mm]
-5
-4
-3
-2
-1
0
1
2
3
4
5
[%]
Relative Verzeichnung
0
3
6
9
12
15
18
X'[mm]
0
3
6
9
12
Y'[mm]
Effektive Verzeichnung
Aperture Stop 5.6
0
3
6
9
12
15
18
21
Y'[mm]
0
20
40
60
80
100
[%]
Blende 2,0
Apo-Summicron-M 1:2,0/50mm ASPH.
Brennweite 50 mm
0
3
6
9
12
15
18
21
Y' [mm]
0
20
40
60
80
100
[%]
Blende 2,8
0
3
6
9
12
15
18
21
Y'[mm]
0
20
40
60
80
100
Blende 5,6
[%]
0
3
6
9
12
15
18
21
Y'[mm]
0
20
40
60
80
100
[%]
Vignettierung
2,0
2,8
5,6
0
3
6
9
12
15
18
21
Y'[mm]
-5
-4
-3
-2
-1
0
1
2
3
4
5
[%]
Relative Verzeichnung
0
3
6
9
12
15
18
X'[mm]
0
3
6
9
12
Y'[mm]
Effektive Verzeichnung
LEICA APO-SUMMICRON-M 50 mm f/2 ASPH.
f/5.6
f/2.8
