Specifications
Page 4 of 8
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As at March 2016
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Speciļ¬cations are subject to change without notice
Leica Camera AG
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Am Leitz-Park 5
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35578 WETZLAR
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GERMANY
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Telephone +49(0)6441-2080-0
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Fax +49(0)6441-2080-333
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www.leica-camera.com
LEICA SUMMARIT-M 90 mm f/2.4
DISTORTION
VIGNETTING
Sagittal structures
Tangential structures
0 3 6 9 12 15 18 21
Y'[mm]
0
20
40
60
80
100
[%]
Blende 2.4
Summarit-M 1:2,5/90mm Brennweite 90 mm
0 3 6 9 12 15 18 21
Y' [mm]
0
20
40
60
80
100
[%]
Blende 4.0
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
2.4
4.0
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
0 3 6 9 12 15 18 21
Y'[mm]
0
20
40
60
80
100
[%]
Blende 2.4
Summarit-M 1:2,5/90mm Brennweite 90 mm
0 3 6 9 12 15 18 21
Y' [mm]
0
20
40
60
80
100
[%]
Blende 4.0
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
2.4
4.0
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
0 3 6 9 12 15 18 21
Y'[mm]
0
20
40
60
80
100
[%]
Blende 2.4
Summarit-M 1:2,5/90mm Brennweite 90 mm
0 3 6 9 12 15 18 21
Y' [mm]
0
20
40
60
80
100
[%]
Blende 4.0
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
2.4
4.0
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
DISTORTION
VIGNETTING
Distortion is the deviation of the real image height (in the picture) from the ideal image height. The relative distortion is the percentage
deviation. The ideal image height results from the object height and the magnification. The image height of 21.6 mm is the radial distance
between the edge and the middle of the image field for the format 24 mm x 36 mm. The graph of the effective distortion illustrates the
appearance of straight horizontal and vertical lines in the picture.
Vignetting is a continous decrease of the illumination to the edges of the image field. The graph shows the percentage loss of illumination
over the image height. 100 % means no vignetting.
Relative Distortion
Effective Distortion