LEICA | 3 |
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MTF graphs
100[%] |
| Aperture Stop 2.5 |
| |
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|
| |
80 |
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|
|
60 |
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|
40 |
|
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|
20 |
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|
0 |
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0 | 5 | 10 | 15 | 20 |
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| Y' [mm] = | 21.0000 |
100[%] |
| Aperture Stop 4.0 |
| |
|
|
|
| |
80 |
|
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|
60 |
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|
40 |
|
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|
20 |
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|
0 |
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|
0 | 5 | 10 | 15 | 20 |
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|
| Y' [mm] = | 21.0000 |
100[%] |
| Aperture Stop 5.6 |
| |
|
|
|
| |
80 |
|
|
|
|
60 |
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|
40 |
|
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|
20 |
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|
0 |
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|
0 | 5 | 10 | 15 | 20 |
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|
| Y' [mm] = | 21.0000 |
The MTF is indicated both at full aperture and at 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.
sagittal structures
_ _ _ _ _ _ _ _ tangential structures