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Leica 11646 - page 1
LEICA SUMMARIT -M 90 mm f/2.5 1 The LEICA SUMMARIT-M 90 mm f/2.5 is a v ersatile telephoto lens that rounds off the new lens speed class of Summarit-M len- ses. Despite being much more handy and lighter than t he comparable 90 mm Summicron lens, it of fers outstanding optical and mechanical quality . Even at full aperture, this lens demonstr ates e ...
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Leica 11646 - page 2
LEICA SUMMARIT -M 90 mm f/2.5 2 For 35 mm (2 4 x 36 mm) : 27°, 22,6°, 1 5,2°, f or LEICA M8 (1 8 x 27 mm): 20,4°, 1 7 . 1°, 1 1.4°, corresponds to a focal length of appro x. 1 20 mm with 35 mm-format Number of lenses/groups: 5 / 4 Focal length: 9 1.0 mm Position of entrance pupil: 5 4 ,8 mm (related t o the fir st lens surface in light direct ...
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Leica 11646 - page 3
LEICA SUMMARIT -M 90 mm f/2.5 3 0 5 10 15 20 Y' [mm] = 2 1 .0000 0 20 40 60 80 10 0 [%] Aperture Stop 2.5 0 5 10 15 20 Y' [mm] = 2 1 .0000 0 20 40 60 80 10 0 Aperture Stop 5.6 [%] 0 5 10 15 20 Y' [mm] = 2 1 .0000 0 20 40 60 80 10 0 [%] Aperture Stop 4.0 MTF graphs The MTF is indicated both at full aperture and at f/5.6 at long taking ...
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Leica 11646 - page 4
LEICA SUMMARIT -M 90 mm f/2.5 4 Distortion Vignetting 0 5 10 15 20 Y' [mm] = 2 1 .0000 -5 -4 -3 -2 -1 0 1 2 3 4 5 [%] Relative Dis tor tion 0 5 10 15 20 Y' [mm] = 2 1 .0000 0 20 40 60 80 10 0 [%] Vignetting 2.5 4.0 5.6 0 3 6 9 12 15 18 X'[mm] 0 3 6 9 12 Y'[mm] Ef f ective Distortion Distortion is the deviation of the real image ...
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Leica 11646 - page 5
LEICA SUMMARIT -M 90 mm f/2.5 5 Depth of field table Magnification 1 0,991 - 1,009 0,990 - 1,010 0,986 - 1,015 0,980 - 1,021 0,972 - 1,030 0,962 - 1,042 0,945 - 1,062 1/8,9 1,2 1,186 - 1,214 1,185 - 1,215 1,179 - 1,222 1,171 - 1,231 1,159 - 1,244 1,144 - 1,262 1,121 - 1,292 1/11,1 1,5 1,479 - 1,522 1,477 - 1,524 1,467 - 1,535 1,454 - 1,549 1,435 - ...
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Leica 11646 - page 6
LEICA SUMMARIT -M 90 mm f/2.5 6 Aperture Stop 8 0 5 10 15 20 25 30 35 40 45 50 ∞ 10 5 3 2 1,5 1,2 1 Distance Setting [m] Depth of Field [m] Aperture Stop 4 0 5 10 15 20 25 30 35 40 45 50 ∞ 10 5 3 2 1,5 1,2 1 Distance Setting [m] Depth of Field [m] Aperture Stop 5,6 0 5 10 15 20 25 30 35 40 45 50 ∞ 10 5 3 2 1,5 1,2 1 Distance Setting [m] Depth ...
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Leica 11646 - page 7
LEICA SUMMARIT -M 90 mm f/2.5 7 Leica Camera AG / Osk ar- Barnack- Straße 1 1 / D - 35606 Solms / T elefon + 49 (0) 6442- 208 - 0 / T elefax + 49 (0) 6442 - 208- 333 www.leica- camera.com / info @leica - camera.com Aperture Stop 11 0 5 10 15 20 25 30 35 40 45 50 ∞ 10 5 3 2 1,5 1,2 1 Distance Setting [m] Depth of Field [m] Aperture Stop 16 0 5 10 ...
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