LEICA | 3 |
|
|
MTF graphs
100[%] |
| Aperture Stop 3.8 |
| |
|
|
|
| |
80 |
|
|
|
|
60 |
|
|
|
|
40 |
|
|
|
|
20 |
|
|
|
|
0 |
|
|
|
|
0 | 5 | 10 | 15 | 20 |
|
|
| Y' [mm] = | 21.0 |
100[%] |
| Aperture Stop 5.6 |
| |
|
|
|
| |
80 |
|
|
|
|
60 |
|
|
|
|
40 |
|
|
|
|
20 |
|
|
|
|
0 |
|
|
|
|
0 | 5 | 10 | 15 | 20 |
|
|
| Y' [mm] = | 21.0 |
100[%] |
| Aperture Stop 8.0 |
| |
|
|
|
| |
80 |
|
|
|
|
60 |
|
|
|
|
40 |
|
|
|
|
20 |
|
|
|
|
0 |
|
|
|
|
0 | 5 | 10 | 15 | 20 |
|
|
| Y' [mm] = | 21.0 |
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
