Voigtlander Nokton 10.5 mm f/0.95
8. Vignetting
| Olympus E-PL1, f/0.95 | Olympus E-PL1, f/1.4 |
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| Olympus E-PL1, f/2.0 | Olympus E-PL1, f/2.8 |
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At the maximum relative aperture the losses of light in the frame corners amount to as much as 66% (-3.11 EV). It is a huge value and, what’s interesting, comparable to the one we observed in the case of the Nokton 0.95/17.5. The vignetting remains still very high by f/1.4 and we determined its level as 46% (-1.78 EV); By f/2.0 it remains still visible, getting to 28% (-0.94 EV). A moderate level of vignetting can be observed only by f/2.8 where it is 17% (-0.53 EV). Further stopping down doesn’t cause any noticeable vignetting changes.
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