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LEICA APO MACRO SUMMARIT-S 120 mm f/2.5
Technical Data.
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Illustration 1:2
TECHNICAL DATA
Order no.
Image angle
(diagonal, horizontal, vertical)
Optical design
Number of lenses / groups 9 / 7
Entrance pupil infinity: 11.39 mm (in front of bayonet in incident light direction),
Focusing range 0,57 m to ∞
Distance setting
Scales Combined meter/feet graduation
Smallest object field 64 mm × 95 mm
Largest reproduction ratio 1 : 2,1
Aperture
Setting / Function Electronically controlled diaphragm, set using setting/
Lowest value 22
Bayonet
Filter mount / Lens hood
Dimensions and weight
Length to bayonet mount approx. 128 / 202 mm (without / with lens hood)
Largest diameter approx. 91 / 103 mm (without / with lens hood)
Weight approx. 1135 / 1205 g (without / with central shutter)
11070 (CS: 11052)
approx. 25° / 21° / 24°, corresponds to approx. 96 mm focal length in 35 mm format
close focus limit: 77.23 mm (in front of bayonet in incident light direction)
selection dial on camera, including half values
Leica S bayonet
External bayonet for lens hood (included), internal thread for
E72 filter, filter mount does not rotate
Leica Camera AG / Oskar-Barnack-Strasse 11 / 35606 SOL MS / GERMANY / Phone +49(0)6442-20 8- 0 I Fax +49(0)6442-208-333 / www.leica- camera.com
Page 1 of 6 / As at September 2012 / Speci fications are subject to change without notice
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LEICA APO MACRO SUMMARIT-S 120 mm f/2.5
ENGINEERING DRAWING LENS SHAPE
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Illustration 1:2
The APO Macro-Summarit-S 120 mm f/2.5 plays a true dual role in the Leica S-System: On the one hand, it is a
macro lens with a maximum reproduction ratio of 1:2 that renders even the finest details with perfection. On the
other hand, its focal length, equivalent to 100 mm in 35 mm format, makes it an ideal moderate telephoto lens for
portrait photography, particularly as its unusually large initial aperture allows perfect isolation of portrait subjects
from their backgrounds.
Its design and construction is equally elaborate: of the nine lenses arranged in seven groups, three are made of
special glass with anomalous partial dispersion. The exceptionally low dispersion (colour scattering) of two of these
is instrumental in keeping chromatic aberrations to a minimum. Its front-group focusing design features a floating
element, i.e. an independently moving lens group that ensures spectacular imaging performance throughout the
entire focusing range, even at the closest of focusing distances. Although the lens does not feature a completely
sealed barrel due to the extreme extension of its close-up range, it is very effectively protected against the
influences of water droplets, dust and moisture.
The optical design of the lens ensures that aberrations such as vignetting or distortion remain imperceptible. The
contrast performance of the APO Macro-Summarit-S 120 mm f/2.5 is already so good at maximum aperture that
stopping down to smaller apertures brings only an insignificant increase in contrast rendition, and even then, only in
the extreme corners of the image. The combination of a moderate telephoto focal length, full macro-capability and
an unusually fast initial aperture of f/2.5, and an alternative version with a central shutter, make this a unique lens
in every respect.
Leica Camera AG / Oskar-Barnack-Strasse 11 / 35606 SOL MS / GERMANY / Phone +49(0)6442-20 8- 0 I Fax +49(0)6442-208-333 / www.leica- camera.com
Page 2 of 6 / As at September 2012 / Speci fications are subject to change without notice
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LEICA APO MACRO SUMMARIT-S 120 mm f/2.5
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Lens with len s hood , illustrat ion 1:2 Lens ho od in t ransp ort posit ion, illustratio n 1:2
SCOPE OF DELIVERY
Lens cover S E72 (Order no. 16018), Rear lens cover S (Order no. 16020),
Lens pouch (Order no. 439-606.101-000), Lens hood (Order no. 12402)
Leica Camera AG / Oskar-Barnack-Strasse 11 / 35606 SOL MS / GERMANY / Phone +49(0)6442-20 8- 0 I Fax +49(0)6442-208-333 / www.leica- camera.com
Page 3 of 6 / As at September 2012 / Speci fications are subject to change without notice
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MTF GRAPHS
Focusing distance
100
LEICA APO MACRO SUMMARIT-S 120 mm f/2.5
% Aperture Stop 5.6 % Aperture Stop 8.0% Aperture Stop 2.5
100
100
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mm
80
60
40
20
0
100
80
60
40
20
3 6 9 12 15 18 21 24 270
80
60
40
20
0
3 6 9 12 15 18 21 24 270
Infinity (∞)
% Aperture Stop 2.5 % Aperture Stop 5.6 % Aperture Stop 8.0
100
80
60
40
20
mm
80
60
40
20
0
100
80
60
40
20
3 6 9 12 15 18 21 24 270
mm
0
3 6 9 12 15 18 21 24 270
MTF GRAPHS The MTF is indicated both at full aper ture and at f/5.6 and f/8 at long taking distances (infinity).
0
3 6 9 12 15 18 21 24 270
mm
Shown is the contrast in percentage for 5, 10, 20 and 40 lp/mm across 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.
0
mm
Sagittal structures
Tangential structures
3 6 9 12 15 18 21 24 270
mm
Leica Camera AG / Oskar-Barnack-Strasse 11 / 35606 SOL MS / GERMANY / Phone +49(0)6442-20 8- 0 I Fax +49(0)6442-208-333 / www.leica- camera.com
Page 4 of 6 / As at September 2012 / Speci fications are subject to change without notice
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LEICA APO MACRO SUMMARIT-S 120 mm f/2.5
VIGNETTING-/DISTORTION DIAGRAM
Focusing distance
100
80
60
40
20
0
3 6 9 12 15 18 21 24 270
mm
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% Relative Distortion mm Effective Distortion% Vignetting
5
4
mm
15
7.5
0
2.5
7.5 15 22.50
mm
3
2
1
0
-1
-2
-3
-4
-5
3 6 9 12 15 18 21 24 270
Infinity (∞)
100
80
60
40
20
0
3 6 9 12 15 18 21 24 270
Vignetting
mm
8.0, 5.6
% Relative Distortion%
5
4
3
2
1
0
-1
-2
-3
-4
-5
3 6 9 12 15 18 21 24 270
mm Effective Distortion
15
7.5
0
mm
2.5
5.6
8.0
7.5 15 22.50
mm
Distortion is the deviation of the real image height (in the picture) from the ideal image height.
DISTORTION &
VIGNETTING
Leica Camera AG / Oskar-Barnack-Strasse 11 / 35606 SOL MS / GERMANY / Phone +49(0)6442-20 8- 0 I Fax +49(0)6442-208-333 / www.leica- camera.com
The relative distor tion is the percentage deviation. The ideal image height results from the
object height and the magnification. The image height of 27.04 mm is the radial distance
between the edge and the middle of the image field for the format 30 mm × 45 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.
Page 5 of 6 / As at September 2012 / Speci fications are subject to change without notice
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LEICA APO MACRO SUMMARIT-S 120 mm f/2.5
DEPTH OF FIELD TABLE
Aperture Stop
2,8 4 5,6 8 11 16 22
0,57 0,567 – 0,569 0,566 – 0,570 0,566 – 0,571 0,565 – 0,572 0,563 – 0,573 0,561 – 0,575 0,559 – 0,578 1/2,1 2
0,58 0,579 – 0,581 0,578 – 0,582 0,577 – 0,583 0,576 – 0,584 0,575 – 0,585 0,573 – 0,588 0,570 – 0,591 1/2,25
0,6 0,599 – 0,601 0,598 – 0,602 0,597 – 0,603 0,596 – 0,604 0,594 – 0,606 0,592 – 0,609 0,589 – 0,612 1/2,46
0,62 0,619 – 0,621 0,618 – 0,622 0,617 – 0,623 0,615 – 0,625 0,614 – 0,626 0,611 – 0,629 0,608 – 0,633 1/2,66
0,65 0,648 – 0,652 0,647 – 0,653 0,646 – 0,654 0,645 – 0,655 0,643 – 0,657 0,640 – 0,661 0,636 – 0,665 1/2,96
0,68 0,678 – 0,682 0,677 – 0,683 0,676 – 0,684 0,674 – 0,686 0,672 – 0,688 0,668 – 0,692 0,664 – 0,697 1/3,24
0,7 0,698 – 0, 70 2 0,697 – 0, 70 3 0,696 – 0,705 0,694 – 0,706 0,691 – 0,709 0,687 – 0, 713 0,683 – 0, 718 1/3,42
0,75 0,748 – 0, 75 2 0,746 – 0,754 0,745 – 0, 75 5 0 ,742 – 0, 75 8 0,740 – 0, 761 0,735 – 0, 766 0,730 – 0,772 1/3,88
0,8 0,797 – 0,803 0,796 – 0,805 0 ,794 – 0,806 0 ,791 – 0,809 0,788 – 0,813 0 ,782 – 0,818 0,776 – 0,826 1/4,33
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Magnifi-
cation
CS
0,85 0, 847 – 0,853 0,845 – 0,855 0,843 – 0,857 0,840 – 0,861 0,836 – 0,865 0,830 – 0,871 0,822 – 0,880 1/4,78
0,9 0,896 – 0,904 0,894 – 0,906 0,892 – 0,908 0,888 – 0,912 0,884 – 0,917 0,877 – 0,9 25 0,868 – 0,934 1/5,23
1 0,995 – 1,005 0,9 92 – 1,008 0,989 – 1, 011 0,985 – 1, 015 0,980 – 1, 021 0,971 – 1, 031 0,960 – 1,044 1/6,12
1,1 1,09 – 1,11 1,09 – 1,11 1,09 – 1,11 1,08 – 1,1 2 1,08 – 1,1 3 1,06 – 1,1 4 1,05 – 1,1 6 1/6,99
1,2 1,19 – 1, 21 1 ,19 – 1, 21 1,1 8 – 1, 22 1,18 – 1, 22 1,17 – 1, 23 1 ,16 – 1, 25 1,14 – 1, 3 1/7, 8 4
1,3 1,29 – 1, 31 1,29 – 1, 31 1,28 – 1, 32 1,27
1,5 1,49 – 1, 51 1,48 – 1, 52 1,48 – 1, 53 1,46 – 1, 54 1,45 – 1, 55 1,43 – 1, 58 1,41 – 1, 6 1/10,4
1,7 1,69 – 1, 72 1,68 – 1, 72 1,67 – 1, 73 1,65 – 1, 75 1,64 – 1, 77 1, 61 – 1,80 1,58 – 1, 8 1/12
2 1,98 – 2, 02 1,97 – 2, 03 1,95 – 2,05 1,94 – 2, 07 1,91 – 2,10 1,87 – 2,15 1,83 – 2, 2 1/14,5
2,5 2,47 – 2, 54 2,45 – 2, 56 2,43 – 2, 58 1,94 – 2, 07 2,36 – 2, 66 2,30 – 2, 74 2, 24 – 2, 8 1/18,7
3 2,95 – 3,05 2,92 – 3,08 2,90 – 3 ,11 2,85 – 3,16 2,80 – 3,23 2,72 – 3,35 2,63 – 3,5 1/22,8
4 3,91 – 4,09 3,87 – 4,15 3,81 – 4,21 3 , 74 – 4,30 3,65 – 4,43 3,51 – 4,65 3,36 – 5,0 1/31,1
5 4,86 – 5,15 4 ,79 – 5,23 4, 71 – 5,33 4,60 – 5,48 4,46 – 5,69 4,25 – 6,07 4,03 – 6,6 1/39,4
7 6,73 – 7, 29 6,59 – 7,46 6,44 – 7, 67 6,23 – 7,9 9 5,98 – 8,44 5,61 – 9, 32 5,22 – 10 ,7 1/55,9
15 13,80 – 16,44 13,22 – 17, 33 12,63 – 18,48 11,83 – 20,52 10,96 – 23,81 9,77 – 32 ,51 8,64 – 58,0 1/122
∞ 170,4 – ∞ 110 ,9 – ∞ 79,2 – ∞ 55,5 – ∞ 40,4 – ∞ 27, 8 – ∞ 20,2 – ∞ 1/∞
–
1, 33 1, 26 – 1,34 1,25 – 1, 36 1,23 – 1, 4 1/8,69
Set distance [m]
Leica Camera AG / Oskar-Barnack-Strasse 11 / 35606 SOL MS / GERMANY / Phone +49(0)6442-20 8- 0 I Fax +49(0)6442-208-333 / www.leica- camera.com
Page 6 of 6 / As at September 2012 / Speci fications are subject to change without notice
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