Nikon Nikkor Z 24-70 mm f/2.8 S II
8. Vignetting
| Z8, APS-C/DX, JPEG, 24 mm, f/2.8 | Z8, APS-C/DX, JPEG, 24 mm, f/4.0 |
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| Z8, APS-C/DX, JPEG, 45 mm, f/2.8 | Z8, APS-C/DX, JPEG, 45 mm, f/4.0 |
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| Z8, APS-C/DX, JPEG, 70 mm, f/2.8 | Z8, APS-C/DX, JPEG, 70 mm, f/4.0 |
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There are almost no problems at all. At 24 mm and f/2.8 brightness loss in frame corners amounts to just 15% (−0.54 EV) and it decreases to an imperceptible value of 5% (−0.16 EV), on stopping down the aperture to f/4.0.
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In the middle of the focal range the results are a tad weaker: by f/2.8 vignetting amounts to 20% (−0.66 EV), but by f/4.0 it is already 6% (−0.19 EV). A slight increase of vignetting you see again at 70 mm, where, at the maximum relative aperture, this aberration reaches 23% (−0.74 EV), and by f/4.0 it decreases to 6% (−0.17 EV).
Still in this category, a cooperation with a full frame detector is a real challenge for the tested Nikkor. First let's glance at the thumbnails below.
| Z8, FF, JPEG, 24 mm, f/2.8 | Z8, FF, JPEG, 24 mm, f/4.0 |
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| Z8, FF, JPEG, 45 mm, f/2.8 | Z8, FF, JPEG, 45 mm, f/4.0 |
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| Z8, FF, JPEG, 70 mm, f/2.8 | Z8, FF, JPEG, 70 mm, f/4.0 |
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A difficult combination of the widest angle available and f/2.8 means in the corners of your frame will be 56% of light less (-2.39 EV). It is a high value but still a tad better than the level you see in the test of the predecessor.
Stopping down the aperture helps with vignetting and here the new model reacts a bit more efficiently than its predecessor. By f/4.0 this aberration reaches 40% (−1.46 EV), by f/5.6 it amounts to 28% (−0.93 EV), by f/8.0 it reaches 18% (−0.56 EV), and by f/11 it gets to 16% (−0.51 EV). Further stopping down doesn't bring any measurable effects.
The situation in the middle of the focal range is very similar. By f/2.8 the vignetting reaches a very high value of 55% (−2.31 EV) and here the new model fares a bit weaker than the first version of this lens. Fortunately, stopping down of the aperture is once again more efficient.
By f/4.0 vignetting reaches 36% (−1.28 EV), so here the new model prevails slightly and its advantage will increase fast. By f/5.6 you get a level of 23% (−0.75 EV), and after applying the f/8.0 relative aperture, vignetting decreases to 13% (−0.41 EV). At higher aperture values, vignetting level remains near 13%.
The situation at 70 mm is the best. By f/2.8 vignetting reaches a level of 45% (−1.74 EV) and it is a result by 9 percentage points better than the result of the predecessor. By f/4.0 this aberration decreases to 26% (-0.86 EV), and by f/5.6 to 13% (-0.41 EV). Its level becomes negligible up from f/8.0, where we got a result reaching just 9% (-0.29 EV).
To sum up, the new model performs here slightly better than the predecessor. At both ends of the range its vignetting is lower; in the middle of the focal range it is higher, but at all focal lengths stopping down the aperture limits this aberration much more efficiently. I think it is a step in the right direction.
| Nikon Z8, 24 mm, JPEG, f/2.8 |
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| Nikon Z8, 45 mm, JPEG, f/2.8 |
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| Nikon Z8, 70 mm, JPEG, f/2.8 |
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