Leica Camera Lens 11626 User Manual

LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
1
With its impressive angle of view of 107°, this new TRI-ELMAR conquers 16 mm super wide-angle photography in perfect Leica M  
style. Due to the minimal distortion and barely perceptible field curvature, it can be recommended for highly demanding architec-  
ture photography even at the 16 mm setting. Used on the digital M8, it produces the image effect of a 21 - 28 mm lens, still enab-  
ling extreme wide-angle views. The ultra compact shape is achieved by two aspherical elements. A new design of the interior  
focusing significantly enhances the quality in the close-focus range through an adaption of the floating element principle. Brilliant  
depth of field can therefore be used from a distance of 0.33 m for hyperfocal photography. Save money by buying the lens in a set  
together with the Universal Wide-angle Viewfinder M.  
Lens shape 16 mm  
Aspheres  
Internal focussing  
Vario group 1  
Vario group 2  
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LEICA TRI-ELMAR-M 1:4/16-18-21 mm ASPH.  
3
Engineering drawing  
Technical Data  
Angle of view (diagonal, horizontal, vertical)  
for 35 mm (24 x 36 mm):  
at 16 mm: 107°, 97°, 74°  
at 18 mm: 100°, 90°, 67°  
at 21 mm: 92°, 81°, 60°  
for digital (18 x 27 mm):  
at 16 mm: 90°, 80°, 59°  
at 18 mm: 84°, 74°, 53°  
at 21 mm: 75°, 65°, 46°, corresponds approx. to a focal length of 21/24/28 mm with 35 mm-format  
Number of elements / groups: 10 / 7  
Focusing range: 0.5 m to Infinity, range from 0.5 to 0.7 m separated by index  
Scales: Combined meter/feet graduation with uniform grey figures below 0.7 m  
Smallest object field:  
Optical design  
Distance setting  
for 35 mm:  
at 16 mm: 915 x 1373 mm, approx. 1:38  
at 18 mm: 833 x 1250 mm, approx. 1:35  
at 21 mm: 725 x 1087 mm, approx. 1:30  
for digital:  
at 16 mm: 688 x 1032 mm, approx. 1:38  
at 18 mm: 626 x 939 mm, approx. 1:35  
at 21 mm: 545 x 817 mm, approx. 1:30  
Highest reproduction ratio: at 0,7 m  
at 16 mm: 1:38  
at 18 mm: 1:35  
at 21 mm: 1:30  
Aperture  
Setting / Function: Preset, with click-stops, half values available  
Lowest value: 22  
Bayonet  
Filter (type)  
Lens hood  
Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models  
Male thread, non-rotating and with stop for filter holder or lens hood  
screw-on type lens hood (included in delivery),  
filter holder for E67 size filters optionally available  
Length: approx. 62/72 mm (with/without lens hood)  
Largest diameter: approx. 54 mm (53 x 58 mm with lens hood)  
Weight: approx. 335 g  
Dimensions and weight  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
4
MTF graphs 16 mm  
Aperture SStop 8.0  
Aperture SStop 4.0  
[%]  
[%]  
100  
80  
60  
40  
20  
0
100  
80  
60  
40  
20  
0
1
0
5
10  
15  
20  
0
5
10  
15  
20  
Y'[mm]  
Y'[mm]  
Aperture SStop 5.6  
[%]  
The MTF is indicated at full aperture and at  
f/5.6 and f/8.0 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.  
100  
80  
60  
40  
20  
0
sagittal structures  
_ _ _ _ _ _ _ _  
tangential structures  
0
5
10  
15  
20  
Y'[mm]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
5
Distortion 16 mm  
Effective Distortion  
Relative Distortion  
[%]  
5
4
Y'[mm]  
3
12  
9
2
1
0
-1  
-2  
-3  
-4  
-5  
6
3
0
0
3
6
9
12 15 18  
X'[mm]  
0
5
10  
15  
20  
Y'[mm]  
Vignetting 16 mm  
[%]  
100  
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  
21.6mm is the radial distance between the edge and  
the middle of the image field for the format 24mm x  
36mm. The graph of the effective distortion illustra-  
tes the appearance of straight horizontal and verti-  
cal lines in the picture.  
8.0  
5.6  
4.0  
80  
60  
40  
20  
0
Vignetting is a continous decrease of the illumina-  
tion to the edges of the image field. The graph  
shows the percentage loss of illumination over the  
image height. 100% means no vignetting.  
0
5
10  
15  
20  
Y'[mm]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
6
18 mm  
Vignetting  
Aperture SStop 4.0  
[%]  
[%]  
100  
80  
60  
40  
20  
0
100  
80  
60  
40  
20  
0
8.0  
5.6  
4.0  
0
5
5
5
10  
15  
20  
0
5
10  
15  
20  
Y'[mm]  
Y'[mm]  
Aperture SStop 5.6  
Relative Distortion  
[%]  
[%]  
100  
80  
60  
40  
20  
0
5
4
3
2
1
0
-1  
-2  
-3  
-4  
-5  
0
10  
15  
20  
0
5
10  
15  
20  
Y'[mm]  
Y'[mm]  
Aperture SStop 8.0  
Effective Distortion  
[%]  
100  
80  
60  
40  
20  
0
Y'[mm]  
12  
9
6
3
0
0
0
10  
15  
20  
3
6
9
12 15 18  
X'[mm]  
Y'[mm]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
7
21 mm  
Vignetting  
Aperture SStop 4.0  
[%]  
[%]  
100  
80  
60  
40  
20  
0
100  
80  
60  
40  
20  
0
8.0  
5.6  
4.0  
0
5
5
5
10  
15  
20  
0
5
10  
15  
20  
Y'[mm]  
Y'[mm]  
Aperture SStop 5.6  
Relative Distortion  
[%]  
[%]  
100  
80  
60  
40  
20  
0
5
4
3
2
1
0
-1  
-2  
-3  
-4  
-5  
0
10  
15  
20  
0
5
10  
15  
20  
Y'[mm]  
Y'[mm]  
Aperture SStop 8.0  
Effective Distortion  
[%]  
100  
80  
60  
40  
20  
0
Y'[mm]  
12  
9
6
3
0
0
0
10  
15  
20  
3
6
9
12 15 18  
X'[mm]  
Y'[mm]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
8
Depth of field table 16 mm  
Aperture Stop  
Magnification  
4,0  
5,6  
8
11  
16  
22  
0,272 - ∞  
0,292 - ∞  
0,307 - ∞  
0,319 - ∞  
0,339 - ∞  
0,368 - ∞  
0,385 - ∞  
0,403 - ∞  
0,418 - ∞  
0,444 - ∞  
0,5 0,426 - 0,614  
0,6 0,491 - 0,786  
0,403 - 0,679  
0,460 - 0,904  
0,511 - 1,183  
0,557 - 1,542  
0,638 - 2,682  
0,792 - 214,2  
0,899 - ∞  
0,374 - 0,813  
0,420 - 1,178  
0,461 - 1,737  
0,497 - 2,698  
0,558 - 12,08  
0,666 - ∞  
0,344 - 1,098  
0,381 - 1,963  
0,413 - 4,516  
0,440 - 210,2  
0,484 - ∞  
0,306 - 2,956  
0,333 - ∞  
0,355 - ∞  
0,373 - ∞  
0,402 - ∞  
0,449 - ∞  
0,476 - ∞  
0,507 - ∞  
0,534 - ∞  
0,582 - ∞  
1/25,9  
1/32,  
0,7  
0,8  
1
0,552 - 0,982  
0,608 - 1,209  
0,709 - 1,789  
0,910 - 4,969  
1,060 - 45,22  
1,269 - ∞  
1/38,1  
1/44,3  
1/56,6  
1/87,2  
1/118  
1/179  
1/302  
1/∞  
1,5  
2
0,560 - ∞  
0,737 - ∞  
0,607 - ∞  
3
1,041 - ∞  
0,826 - ∞  
0,663 - ∞  
5
1,507 - ∞  
1,190 - ∞  
0,913 - ∞  
0,715 - ∞  
2,093 - ∞  
1,517 - ∞  
1,085 - ∞  
0,810 - ∞  
Aperture Stop 4  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
1
2
3
4
5
6
7
8
9
10  
Depth of Field [m]  
Aperture Stop 5,6  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
1
2
3
4
5
6
7
8
9
10  
Depth of Field [m]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
9
Aperture Stop 8  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
0
0
1
1
1
2
2
2
3
3
3
4
5
6
6
6
7
7
7
8
8
8
9
9
9
10  
10  
10  
Depth of Field [m]  
Aperture Stop 11  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
4
5
Depth of Field [m]  
Aperture Stop 16  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
4
5
Depth of Field [m]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
10  
Aperture Stop 22  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
1
2
3
4
5
6
7
8
9
10  
Depth of Field [m]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
11  
Depth of field table 18 mm  
Aperture Stop  
Magnification  
4,0  
5,6  
8
11  
16  
22  
0,5  
0,6  
0,7  
0,8  
1
0,436 - 0,591  
0,506 - 0,746  
0,572 - 0,917  
0,633 - 1,109  
0,745 - 1,569  
0,974 - 3,513  
1,151 - 9,245  
1,406 - ∞  
0,416 - 0,639  
0,478 - 0,829  
0,534 - 1,054  
0,586 - 1,322  
0,679 - 2,058  
0,859 - 7,995  
0,990 - ∞  
0,389 - 0,732  
0,441 - 1,004  
0,487 - 1,369  
0,529 - 1,882  
0,600 - 3,975  
0,732 - ∞  
0,361 - 0,901  
0,404 - 1,383  
0,441 - 2,240  
0,473 - 4,197  
0,527 - ∞  
0,325 - 1,527  
0,356 - 4,164  
0,383 - ∞  
0,406 - ∞  
0,442 - ∞  
0,502 - ∞  
0,539 - ∞  
0,581 - ∞  
0,619 - ∞  
0,688 - ∞  
0,291 - 16,32  
0,315 - ∞  
0,334 - ∞  
0,350 - ∞  
0,375 - ∞  
0,414 - ∞  
0,436 - ∞  
0,461 - ∞  
0,483 - ∞  
0,521 - ∞  
1/23,6  
1/29,1  
1/34,7  
1/40,3  
1/51,4  
1/79,3  
1/107  
1/163  
1/274  
1/∞  
1,5  
2
0,622 - ∞  
0,822 - ∞  
0,683 - ∞  
3
1,168 - ∞  
0,937 - ∞  
0,757 - ∞  
5
1,709 - ∞  
1,364 - ∞  
1,055 - ∞  
0,828 - ∞  
2,523 - ∞  
1,824 - ∞  
1,299 - ∞  
0,965 - ∞  
Aperture Stop 4  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
1
2
3
4
5
6
7
8
9
10  
Depth of Field [m]  
Aperture Stop 5,6  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
1
2
3
4
5
6
7
8
9
10  
Depth of Field [m]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
12  
Aperture Stop 8  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
0
0
1
1
1
2
2
2
3
3
3
4
5
6
6
6
7
7
7
8
8
8
9
9
9
10  
10  
10  
Depth of Field [m]  
Aperture Stop 11  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
4
5
Depth of Field [m]  
Aperture Stop 16  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
4
5
Depth of Field [m]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
13  
Aperture Stop 22  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
1
2
3
4
5
6
7
8
9
10  
Depth of Field [m]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
14  
Depth of field table 21 mm  
Aperture Stop  
Magnification  
4,0  
5,6  
8
11  
16  
22  
0,5 0,448 - 0,568  
0,6 0,524 - 0,707  
0,433 - 0,598  
0,502 - 0,758  
0,566 - 0,936  
0,626 - 1,137  
0,734 - 1,625  
0,955 - 3,813  
1,125 - 11,69  
1,367 - ∞  
0,410 - 0,656  
0,470 - 0,859  
0,524 - 1,102  
0,574 - 1,401  
0,662 - 2,259  
0,831 - 12,41  
0,953 - ∞  
0,385 - 0,749  
0,436 - 1,036  
0,481 - 1,430  
0,522 - 2,000  
0,591 - 4,542  
0,718 - ∞  
0,352 - 0,993  
0,391 - 1,622  
0,426 - 2,968  
0,455 - 7,894  
0,505 - ∞  
0,320 - 1,704  
0,350 - 5,827  
0,376 - ∞  
0,398 - ∞  
0,433 - ∞  
0,490 - ∞  
0,525 - ∞  
0,565 - ∞  
0,601 - ∞  
0,666 - ∞  
1/20,5  
1/25,3  
1/30,2  
1/35,0  
1/44,7  
1/68,8  
1/93,0  
1/141  
1/238  
1/∞  
0,7  
0,8  
1
0,595 - 0,858  
0,663 - 1,020  
0,788 - 1,390  
1,054 - 2,690  
1,268 - 5,055  
1,590 - 42,08  
1,996 - ∞  
1,5  
2
0,590 - ∞  
0,804 - ∞  
0,644 - ∞  
3
1,117 - ∞  
0,914 - ∞  
0,709 - ∞  
5
1,650 - ∞  
1,294 - ∞  
1,026 - ∞  
0,771 - ∞  
3,232 - ∞  
2,397 - ∞  
1,699 - ∞  
1,256 - ∞  
0,887 - ∞  
Aperture Stop 4  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
1
2
3
4
5
6
7
8
9
10  
Depth of Field [m]  
Aperture Stop 5,6  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
1
2
3
4
5
6
7
8
9
10  
Depth of Field [m]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
15  
Aperture Stop 8  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
0
0
1
1
1
2
2
2
3
3
3
4
5
6
6
6
7
7
7
8
8
8
9
9
9
10  
10  
10  
Depth of Field [m]  
Aperture Stop 11  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
4
5
Depth of Field [m]  
Aperture Stop 16  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
4
5
Depth of Field [m]  
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LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.  
16  
Aperture Stop 22  
0,5  
0,6  
0,7  
0,8  
1
1,5  
2
3
5
0
1
2
3
4
5
6
7
8
9
10  
Depth of Field [m]  
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