Nikon Nikkor Z 85 mm f/1.8 S
8. Vignetting
| Nikon Z7, APS-C/DX, f/1.8 | Nikon Z7, APS-C/DX, f/2.0 |
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On the smaller detector you get some chances to notice vignetting only in the closest vicinity of the maximum relative aperture. By f/1.8 that aberration reaches a moderate level of 21% (−0.68 EV), by f/2.0 it decreases to 16% (−0.50 EV), and by f/2.8 it becomes practically imperceptible, dropping to a value of 4% (−0.12 EV).
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When you progress to the bigger full frame sensor there are more problems and photos below show them pretty 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 the loss of 43% of light in frame corners (−1.61 EV). It is a result exactly the same like in the case of the reflex camera predecessor but also noticeably better than the results of the Sony and the Tamron. In this category the tested lens shouldn't be criticised too harshly.
When you stop down the aperture to f/2.0 vignetting decreases to 37% (−1.35 EV), and by f/2.8 it drops to a moderate level of 19% (−0.62 EV). The aberration becomes practically imperceptible already by f/4.0 aperture, where we got a result of 10% (−0.32 EV).
| Nikon Z7, JPEG, f/1.8 |
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