Viltrox AF 50 mm f/1.8 FE / Z
8. Vignetting
| Nikon Z7, APS-C/DX, f/1.8 | Nikon Z7, APS-C/DX, f/2.0 |
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At the smaller detector only in the area closest to the maximum relative aperture you get slight chances to notice vignetting. By f/1.8 that aberration reaches a moderate level of 21% (-0.67 EV), by f/2.0 it decreases to 13% (−0.40 EV), and by f/2.8 it becomes practically imperceptible, dropping to 5% (−0.16 EV).
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After passing to a bigger, full frame sensor there are more problems and photos below show them very well.
| Nikon Z7, FF, f/1.8 | Nikon Z7, FF, f/2.0 |
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| Nikon Z7, FF, f/2.8 | Nikon Z7, FF, f/4.0 |
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At the maximum relative aperture you have to take into account a loss of as much as 53% of light. It is a result exactly on the same level as the result of the Nikkor Z 50 mm f/1.8 S. Both lenses also react similarly to stopping down. By f/2.0 the Viltrox shows a result of 46% (−1.80 EV), by f/2.8 its vignetting decreases to 29% (−0.97 EV), and by f/4.0 it drops to 18% (−0.58 EV). By f/5.6 aperture and higher you deal with a value of about 16% (−0.49 EV).
| Nikon Z7, JPEG, f/1.8 |
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